Latest Standards, Engineering Specifications, Manuals and Technical Publications

Collection of latest documents from ISO, IEC, CEN, CENELEC, ETSI, and SIST.

This document specifies the control and approval of in vitro diagnostic reagents used in animal health for immunological analyses with a qualitative expression of test results.
This document is applicable to diagnostic reagents, as a priority for infectious (bacterial, viral, fungal or parasitic) or prion diseases and associated animal species for which harmonization of practices in this area is needed, i.e. those for which the national, regional or international regulatory framework provides for the control of trade in animals and/or animal products and/or the definition of a health status (absence of infection) of areas, establishments or individuals. While all reagents designated by the competent authorities fall under the scope of this document, the authorities or any other animal health stakeholder can choose to derogate in specific and exceptional situations such as emerging, exotic or rare diseases.
This document is not applicable to all existing diagnostic reagents, in particular those for which certain parameters described in this document cannot be validly evaluated in accordance with international requirements, due, e.g. to the absence of a specific reference method and/or accessible and duly validated reference materials (RMs).
This document does not cover the step in which the user verifies a reagent (analysis method adoption).

  • Standard
    15 pages
    English language
    e-Library read for
    1 day

This part of IEC 61076 establishes uniform specifications and technical information for circular connectors. This document is to be used in conjunction with the generic specification IEC 61076-1 for product requirements as the basis for preparation of detail product specifications for circular connectors.
NOTE The quality assessment requirements for connectors whose product requirements are given in IEC 61076 series are detailed in IEC 62197-1. This can be used as the basis for preparation of detail quality assessment specifications for circular connectors.
In the event of conflict between this sectional product specification and the detail product specification, it is intended that the requirements of the detail product specification prevail.

  • Standard
    30 pages
    English language
    e-Library read for
    1 day

IEC 62933-3-1:2025 is applicable to EES systems designed for grid-connected indoor or outdoor installation and operation. This document considers:
necessary functions and capabilities of EES systems; sizing and design of EES system; operation of EES system; test items and performance assessment methods for EES systems; requirements for monitoring and acquisition of EES system operating parameters; exchange of system information and control capabilities required; maintenance of EES system. Stakeholders of this document comprise personnel involved with EES systems, which include:
- planners of electric power systems and EES systems;
- owners of EES systems;
- operators of electric power systems and EES systems;
- constructors;
- suppliers of EES systems and its equipment;
- aggregators.
Use-case-specific technical documentation, including planning and installation specific tasks such as system design, monitoring, measurement, tests, operation and maintenance, are very important and can be found throughout this document.

  • Standard
    108 pages
    English language
    e-Library read for
    1 day

IEC 62065:2025 specifies the minimum operational and performance requirements, test methods and required test results conforming to performance standards adopted by the IMO in resolution MSC.74(69) Annex 2 Recommendation on Performance Standards for Track Control Systems. In addition, it takes into account IMO resolution A.694(17) to which IEC 60945 is associated. It also takes into account IMO resolution MSC.302(87) on bridge alert management (BAM), to which IEC 62923-1 and IEC 62923-2 are associated.
This third edition cancels and replaces the second edition published in 2014. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alert management has been brought in line with MSC.302(87), IEC 62923-1 and IEC 62923‑2, reducing the number of alerts for one situation and improving the information provided by alerts. An overview is provided in Annex F;
b) the previous Annex F has been removed as it was outdated and not instrumental in this document;
c) the requirements in Clause 5 have been further detailed:
d) the structure of Clause 6 has been updated.

  • Standard
    113 pages
    English language
    e-Library read for
    1 day

This document is applicable to material testing and specifies the requirements for the tensile testing of metallic materials at ambient temperature for aerospace applications.
It is applied when referred to in the EN technical specification or material standard unless otherwise specified on the drawing, order or inspection schedule.

  • Standard
    28 pages
    English language
    e-Library read for
    1 day

IEC 62849:2025 provides performance testing and evaluation methods for the common features of robots for household and similar use, their physical specifications satisfying the following:
– height: maximum 1,75 m,
– dimensions: maximum 700 mm wide (to be able to fit through doorways),
– speed: maximum 1,5 m/s,
– floor supported wheeled or wheel-track robots.
This document is neither concerned with safety nor with performance requirements.
This document is applicable for indoor floor use robots.
This document is not applicable to wet and dry surface-cleaning robots or combination of such functions.
If different testing and evaluating methods are given in other standards for specific robots, these methods can be considered for priority use.
This second edition cancels and replaces the first edition published in 2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the title has been changed to "Performance evaluation methods of robots for household and similar use";
b) the scope is more clearly defined and the physical specifications of robots for household and similar use covered by this document are clearly defined;
c) new evaluation methods for 6 performance items have been added, including obstacle avoidance, managing a ramp, lighting effects, transition overcome, threshold overcome, energy consumption of robots;
d) new structure has been introduced, which provides basic common test methods in each category and can be used by other robotics standards, including the following:
1) mobility,
2) navigation,
3) energy use,
4) effects on environment,
5) other/miscellaneous.

  • Standard
    58 pages
    English language
    e-Library read for
    1 day

This document specifies the requirements relating to:
Steel 40CrMoV12 (1.8523)
Consumable electrode remelted
Hardened and tempered
Forgings
De ≤ 50 mm
1 250 MPa ≤ Rm ≤ 1 400 MPa
for aerospace applications.
W.nr: 1.8523.
ASD-STAN designation: FE-PL1507.

  • Standard
    9 pages
    English language
    e-Library read for
    1 day

IEC 61249-2-53:2025 specifies requirements for properties of PTFE unfilled reinforced laminated sheet of a thickness 0,05 mm up to 10,0 mm of defined flammability (vertical burning test), copper-clad. This part of IEC 61249 is applicable to the design, manufacture, use of PTFE unfilled reinforced laminated sheet of defined flammability (vertical burning test), copper-clad. Its flame resistance is defined in terms of the flammability requirements of 8.4.

  • Standard
    24 pages
    English language
    e-Library read for
    1 day

This document specifies a method using a farinograph for the determination of the water absorption of flours and the mixing behaviour of doughs made from them by a constant flour mass procedure or by a constant dough mass procedure.
The method is applicable to experimental and commercial flours from wheat (Triticum aestivum L.).
NOTE            This document is related to ICC 115/1[5] and AACC Method 54-21.02[6].

  • Standard
    46 pages
    English language
    e-Library read for
    1 day

IEC 60743:2013 applies to the terminology used to describe tools, devices, equipment and methods used in live working. It standardizes the name of tools, devices and equipment and permits their identification by providing definitions and illustrations. It contains some example illustrations. This third edition cancels and replaces the second edition, published in 2001, and its Amendment 1:2008.This edition constitutes a technical revision which includes the following significant technical changes with respect to the previous edition: the clause 2 has been simplified and refers directly to IEC 60050-651; some definitions have been moved to specific existing clauses. This new edition is complementary to IEC 60050-651. Different publications under the responsibility of TC 78 include terms and its definitions. IEC 60050-651 (IEV 651) provides precise, brief and correct definitions of internationally accepted concepts in the field of live working, and specifies the terms by which these defined concepts are known. Electropedia gives access to the terms and definitions of IEC 60050-651 (http://www.electropedia.org/). Each product standard gives definitions necessary for the understanding of certain terms used in a specific context. The IEC Glossary (http://std.iec.ch/glossary) gives on-line access to the information.

  • Standard
    128 pages
    English and French language
    sale 15% off
  • Standard
    260 pages
    English and French language
    sale 15% off

IEC 61290-1-2:2026 applies to all commercially available optical amplifiers (OAs) and optically amplified sub-systems. It applies to OAs using optically pumped fibres (OFAs based on either rare-earth doped fibres or on the Raman effect), semiconductors (SOAs), and planar optical waveguides (POWAs). This document does not apply to polarization-maintaining optical amplifiers. This document defines uniform requirements for accurate and reliable measurements, by means of the electrical spectrum analyzer test method, of the following OA parameters, as defined in IEC 61291-1, Clause 3:
a) nominal output signal power;
b) gain;
c) reverse gain;
d) maximum gain;
e) polarization-dependent gain.
In addition, this test method provides a means for measuring the following parameters:
- maximum gain wavelength;
- gain wavelength band.
This document specifically covers single-channel amplifiers. For multichannel amplifiers, the IEC 61290-10 series applies.
NOTE 1 The applicability of the test methods described in this document to distributed Raman amplifiers is for further study.
NOTE 2 A test method for polarization-maintaining optical amplifiers is for further study.
This third edition cancels and replaces the second edition published in 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) addition of information on the applicability of this document to the scope;
b) harmonization of the scope with the IEC 61290-1 series;
c) addition of safety recommendations to Clause 4 and Clause 5;
d) correction of an error in Clause 7, item e);
e) replacement of the term "wavelength measurement accuracy" with "wavelength accuracy".

  • Standard
    47 pages
    English language
    sale 15% off

IEC 63494-1:2026 specifies the safety requirements for electro-mechanical interfaces connecting lighting system devices to luminaires. These interfaces are used to mechanically connect, electrically power, and enable communication of lighting system devices on luminaires. Electro-mechanical interfaces up to and including 1 000 V AC or 1 500 V DC are included. This document specifies safety related mechanical, electrical, ambient conditions, and construction requirements for the interface components including protective covers. Specific requirements for the devices that can utilize the interface such as sensors, communication modules, cameras, etc., are not within the scope of this document.

  • Standard
    17 pages
    English language
    sale 15% off
  • Standard
    18 pages
    French language
    sale 15% off
  • Standard
    35 pages
    English and French language
    sale 15% off

IEC TS 61851-26:2026, in combination with IEC 61851-1 or IEC 61851-23, gives the requirements for EV supply equipment with automatic docking and undocking functions (aEVSE) at the underbody of electrically propelled road vehicles according to ISO TS 5474-5.
Use of aEVSE with the megawatt charging system is under consideration.
This document provides requirements for aEVSE with a single vehicle connector or a single socket-outlet.
Requirements for aEVSE with more than one vehicle connector or more than one socket-outlet are under consideration.
This document only applies to automatic couplers of category 3, located at the underbody of an electric vehicle.
This document does not apply to automatic coupler of category 1: using a vehicle coupler defined by IEC 62196-2, IEC 62196-3 or IEC TS 62196-3-1.
This document does not apply to automatic couplers of category 2: using an electro-mechanical interface defined by EN 50696. EN 50696 also specifies automatic couplers located at the underbody of an electric vehicle. However, these couplers only provide DC power transfer.
Interoperable communication for docking and undocking between an aEVSE and an EV, extending the communication between an EV supply equipment and an EV as specified in IEC 61851-1, IEC 61851-23, IEC 61851-24 and the ISO 15118 series, is under consideration.
This document does not cover all safety aspects related to maintenance.

  • Technical specification
    42 pages
    English language
    sale 15% off

IEC TS 61851-27:2026, in combination with IEC 61851-1 or IEC 61851-23, gives the requirements for EV supply equipment with automatic docking and undocking functions (aEVSE) of a vehicle coupler according to IEC 62196-2, IEC 62196-3 or IEC TS 62196-3-1 for power transfer with electrically propelled road vehicles according to ISO TS 5474-5.
Use of aEVSE with the megawatt charging system is under consideration.
This document provides requirements for aEVSE with a single vehicle connector.
Requirements for aEVSE with more than one vehicle connector are under consideration.
This document only applies to aEVSE with automatic couplers of category 1: using vehicle couplers defined by IEC 62196-2, IEC 62196-3 or IEC TS 62196-3-1.
This document only specifies automatic conductive energy transfer using a vehicle connector and a vehicle inlet; it does not specify automatic conductive power transfer using a plug and a socket-outlet.
This document does not apply to aEVSE with automatic couplers of category 2: using an electro-mechanical interface defined by EN 50696.
This document does not apply to aEVSE with automatic coupler of category 3 (see IEC TS 61851-26).
EMC requirements for EV supply equipment are defined in IEC 61851-21-2.
Interoperable communication for docking and undocking between an aEVSE and an EV, extending the communication between an EV supply equipment and an EV as specified in IEC 61851-1, IEC 61851-23, IEC 61851-24 and the ISO 15118 series, is under consideration.
This document does not cover all safety aspects related to maintenance

  • Technical specification
    47 pages
    English language
    sale 15% off

IEC 63378-6:2026 specifies a thermal resistance and capacitance model for semiconductor packages. This model is named the digital transformation using thermal resistance and capacitance (DXRC) model. It predicts transient temperature at junction and measurement points.
This document applies to semiconductor packages such as TO-252, TO-263, and HSOP. It supports single chip packages dissipated heat from single package surface.

  • Standard
    28 pages
    English language
    sale 15% off
  • Standard
    29 pages
    French language
    sale 15% off
  • Standard
    57 pages
    English and French language
    sale 15% off
  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    3 pages
    French language
    sale 15% off
  • Standard
    6 pages
    English and French language
    sale 15% off

IEC 63601:2026 covers SiC-based PECS devices having a gate dielectric region biased to turn devices on and off. This typically refers to MOS devices such as MOSFETs and IGBTs. In this document, only NMOS (N-type MOS) devices are discussed as these are dominant for power device applications; however, the procedures apply to PMOS (P-type MOS) devices as well.
This document does not define device failure criteria, acceptable use conditions or acceptable lifetime targets. That is up to the device manufacturers and users. However, it provides stress procedures such that the threshold voltage stability over time as affected by gate bias and temperature can be demonstrated and evaluated.

  • Standard
    44 pages
    English language
    sale 15% off

IEC TS 60825-13:2026 provides manufacturers, test houses, safety personnel, and others with practical guidance on methods to perform radiometric measurements or analyses to establish the emission level of laser energy or power in accordance with IEC 60825-1:2014. The measurement procedures described in this document are guidance for classification of laser products in accordance with IEC 60825‑1:2014. It is possible that other procedures are better or more appropriate.
Information is provided for calculating accessible emission limits (AELs) and maximum permissible exposures (MPEs), since some parameters used in calculating the limits are dependent upon other measured quantities.
This document applies to lasers, including extended sources and laser arrays. The procedures described in this document for extended source viewing conditions can yield more conservative results than when using more rigorous methods.
NOTE Work continues on more complex source evaluations and will be provided as international agreement on the methods is reached.
This first edition cancels and replaces the second edition of IEC TR 60825-13 published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to IEC TR 60825-13:2011:
a) minor changes and additions have been made in the definitions;
b) classification flow has been updated;
c) apparent source sections have been clarified;
d) scanning has been updated;
e) more examples and useful conversions have been added to the annexes.

  • Technical specification
    86 pages
    English language
    sale 15% off

IEC TS 62885-1:2026 specifies the physical characteristics of test equipment and material used in tests common to several products covered by IEC 62285 series for surface cleaning appliances. In addition, it provides guidance regarding the evaluation of Wilton and other types of carpets to determine their acceptability for testing and regarding the pre-treatment of test dust.
This fourth edition cancels and replaces the third edition published in 2020.
This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Almost all of the test equipment is adopted from IEC 62885-2:2021.
b) Test equipment and materials for wet cleaning is included.
c) A description of the verification of an in-house reference vacuum cleaner is added.
d) Information about the reference vacuum cleaner system RSB is added.

  • Technical specification
    65 pages
    English language
    sale 15% off

This document specifies the process for determining the optical or dielectric constants by means of ellipsometric measurements and their analysis based on the bulk material model. If the assumptions of the bulk material model are strictly met, it is possible to determine the optical constants (refractive index n and extinction coefficient k) or the dielectric constants (real part ε1 and imaginary part ε2) of the material directly. Alternatively, optical ( and ) or dielectric ( and ) pseudo constants are determined, which depend on the measurement angle of incidence φ. The degree of consistency of the pseudo constants in the relevant spectral range, determined from measurements at different angles of incidence, represents a necessary prerequisite for the validity or quality of the bulk material model.

  • Standard
    18 pages
    English language
    sale 15% off

This document specifies the reference framework for the benchmarking of integrated indoor localization and tracking methods (LTMs) using dead reckoning in areas of: master sets and test environments; benchmark metrics; benchmarking process; conformance.

  • Standard
    37 pages
    English language
    sale 15% off

This document specifies a method for the determination of the time-weighted average mass concentration of soluble particulate fluorides and hydrofluoric acid (HF) in workplace air by collection of the particulate fluorides on a pre-filter and HF on an alkali-impregnated filter and analysis by ion chromatography. This method is only applicable to determination of particulate fluorides that are soluble using the sample preparation procedure specified. For aerosol sampling, this method is applicable to the personal sampling of the inhalable fraction of airborne particles, as defined in ISO 7708, and to static (area) sampling. The method is applicable to the determination of masses of 0,005 mg to at least 1,25 mg of particulate fluorides per sample and 0,015 mg to at least 1,2 mg of HF per sample.

  • Standard
    22 pages
    English language
    sale 15% off
  • Standard
    23 pages
    French language
    sale 15% off

This document describes a method for determining the tensile adhesion strength of fibre-combined multilayer ceramic tiles, in particular the adhesion between the back of the fibre-combined multilayer ceramic tiles and the cementitious adhesive used for installation.

  • Standard
    6 pages
    English language
    sale 15% off

This document specifies the quality and safety requirements of Pueraria lobata root. This document applies to Pueraria lobata root that is sold and used as natural medicine in international trade, including Chinese materia medica (whole medicinal materials) and decoction pieces derived from this root.

  • Standard
    18 pages
    English language
    sale 15% off

This document specifies the principal dimensions of grooved pulleys for classical V-belts (sections Y, Z, A, B, C, D, and E) and narrow V-belts (sections SPZ, SPA, SPB, and SPC) specified in the terminology system based on datum width.

  • Standard
    7 pages
    English language
    sale 15% off
  • Standard
    1 page
    English language
    sale 15% off
  • Standard
    1 page
    French language
    sale 15% off

This document specifies a spectrophotometric method for the determination of manganese in steel and cast iron. The method is applicable to manganese contents between 0,001 % (mass fraction) and 4,0 % (mass fraction).

  • Standard
    6 pages
    English language
    sale 15% off

IEC 60601-2-64:2025 applies to the BASIC SAFETY and essential performance of LIGHT ION BEAM ME EQUIPMENT, hereafter referred to as ME EQUIPMENT, used for treatment of patients. If a clause or subclause is specifically intended to be applicable to ME EQUIPMENT only, or to ME SYSTEMS only, the title and content of that clause or subclause will say so. If that is not the case, the clause or subclause applies both to ME EQUIPMENT and to ME SYSTEMS, as relevant. This document, with the inclusion of TYPE TESTS and SITE TESTS, applies respectively to the manufacturer and specified installation aspects of LIGHT ION BEAM ME EQUIPMENT – intended for RADIOTHERAPY in human medical practice, including those in which the selection and DISPLAY of operating parameters can be controlled automatically by PROGRAMMABLE ELECTRONIC SUBSYSTEMS (PESS), – that, in NORMAL USE, deliver a RADIATION BEAM of LIGHT IONS having ENERGY PER NUCLEON in the range 10 MeV/n to 500 MeV/n, and – intended to be • for NORMAL USE, operated under the authority of appropriately licensed or QUALIFIED PERSONS by OPERATORS having the required skills for a particular medical application, for particular SPECIFIED clinical purposes maintained in accordance with the recommendations given in the INSTRUCTIONS FOR USE, • subject to regular quality assurance performance and calibration checks by a QUALIFIED PERSON. IEC 60601-2-64:2025 cancels and replaces the first edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) harmonization with IEC 60601-1:2005, IEC 60601-1:2005/AMD1:2011 and IEC 60601-1:2005/AMD2:2020; b) harmonization with IEC 62667:2017 for defined terms and definitions; c) address revision to neutrons outside the field of irradiation.

  • Draft
    62 pages
    English language
    e-Library read for
    1 day

IEC 61757-8-1:2025 defines the terminology, structure, and measurement methods of optical pressure sensors for gases or liquids based on a diaphragm in combination with fibre Bragg gratings (FBGs) as the sensing element. This document also specifies the most important features and characteristics of these fibre optic pressure sensors and defines procedures for measuring these features and characteristics.

  • Draft
    22 pages
    English language
    e-Library read for
    1 day

IEC 61076-2-111:2025 This part of IEC 61076‑2 describes 4- to 6-way circular connectors with M12 screw-locking with current ratings 8, 12 or 16 A per contact and voltage ratings of 50 V AC / 60 V or 630 V according to their coding, that are typically used for power supply and power applications in industrial premises.

  • Draft
    71 pages
    English language
    e-Library read for
    1 day

IEC 63409-3:2025 specifies test procedures for confirming the basic operational characteristics of power conversion equipment (PCE) for use in photovoltaic (PV) power systems with or without energy storage. The basic operational characteristics are the capability of the PCE before any limitations due to internal settings are applied to the PCE to meet specific grid support functions or specific behaviours against abnormal changes. This document covers the testing of the following items: a) Steady state characteristics Test procedures to confirm operable range of PCE at steady state condition are described. The operable ranges in apparent power, active power, reactive power, power factor, grid voltage and grid frequency are confirmed according to the test procedures. b) Transient-response characteristics Test procedures to confirm PCE’s response against a change of operational condition are described. This document only considers the changes within normal (continuous) operable ranges. Therefore, the behaviours against abnormal changes and grid support functions are out of the scope and are covered in other parts of this series.

  • Draft
    66 pages
    English language
    e-Library read for
    1 day

IEC 60749-23:2025 specifies the test used to determine the effects of bias conditions and temperature on solid state devices over time. It simulates the device operating condition in an accelerated way and is primarily for device qualification and reliability monitoring. A form of high temperature bias life using a short duration, popularly known as "burn-in", can be used to screen for infant-mortality related failures. The detailed use and application of burn-in is outside the scope of this document. This edition includes the following significant technical changes with respect to the previous edition: a) absolute stress test definitions and resultant test durations have been updated.

  • Draft
    10 pages
    English language
    e-Library read for
    1 day

IEC 62351-7:2025 defines network and system management (NSM) data object models that are specific to power system operations. These NSM data objects will be used to monitor the health of networks and systems, to detect possible security intrusions, and to manage the performance and reliability of the information infrastructure. The goal is to define a set of abstract objects that will allow the remote monitoring of the health and condition of IEDs (Intelligent Electronic Devices), RTUs (Remote Terminal Units), DERs (Distributed Energy Resources) systems and other systems that are important to power system operations. Power systems operations are increasingly reliant on information infrastructures, including communication networks, IEDs, and self-defining communication protocols. Therefore, management of the information infrastructure has become crucial to providing the necessary high levels of security and reliability in power system operations. The telecommunication infrastructure that is in use for the transport of telecontrol and automation protocols is already subject to health and condition monitoring control, using the concepts developed in the IETF Simple Network Management Protocol (SNMP) standards for network management. However, power system specific devices (like teleprotection, telecontrol, substation automation, synchrophasors, inverters and protections) need instead a specific solution for monitoring their health. The NSM objects provide monitoring data for IEC protocols used for power systems (IEC 61850, IEC 60870-5-104) and device specific environmental and security status. As a derivative of IEC 60870-5-104, IEEE 1815 DNP3 is also included in the list of monitored protocols. The NSM data objects use the naming conventions developed for IEC 61850, expanded to address NSM issues. For the sake of generality these data objects, and the data types of which they are comprised, are defined as abstract models of data objects. In addition to the abstract model, in order to allow the integration of the monitoring of power system devices within the NSM environment in this part of IEC 62351, a mapping of objects to the SNMP protocol of Management Information Base (MIBs) is provided. The objects that are already covered by existing MIBs are not defined here but are expected to be compliant with existing MIB standards. For example protocols including EST, SCEP, RADIUS, LDAP, GDOI are not in scope. This edition of IEC 62351-7 cancels and replaces IEC 62351-7 published in 2017. This new edition constitutes a technical revision and includes the following significant technical changes with respect to IEC 62351-7: a) Reviewed and enriched the NSM object data model; b) UML model adopted for NSM objects description; c) SNMP protocol MIBs translation included as Code Components

  • Draft
    126 pages
    English language
    e-Library read for
    1 day

IEC 60216-1:2025 specifies the general ageing conditions and procedures to be used for deriving thermal endurance characteristics and gives guidance in using the detailed instructions and guidelines in the other parts of IEC 60216. Although originally developed for use with electrical insulating materials and simple combinations of such materials, the procedures are considered to be of more general applicability and are widely used in the assessment of materials not intended for use as electrical insulation. In the application of this document, it is assumed that a practically linear relationship exists between the logarithm of the time required to cause the predetermined property change and the reciprocal of the corresponding absolute temperature (Arrhenius relationship). For the valid application of this document, no transition, in particular no first-order transition, is expected to occur in the temperature range under study. This edition includes the following significant technical changes with respect to the previous edition: a) the definition for temperature index (TI) has been updated; b) requirements for selection of related materials used, e.g. in different colours (5.1.2), have been added; c) test procedure for thickness sensitivity (5.5 et 6.6) has been added; d) Annex C "Concepts in earlier editions" has been deleted.

  • Draft
    35 pages
    English language
    e-Library read for
    1 day

IEC 62196-2:2025 applies to EV plugs, EV socket-outlets, vehicle connectors and vehicle inlets with pins and contact-tubes of standardized configurations, herein referred to as "accessories". These accessories have a nominal rated operating voltage not exceeding 480 V AC, 50 Hz to 60 Hz, and a rated current not exceeding 63 A three phase or 70 A single phase, for use in conductive charging of electric vehicles. This fourth edition cancels and replaces the third edition published in 2022. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of new tests for latching devices; b) corrections to standard sheets.

  • Draft
    74 pages
    English language
    e-Library read for
    1 day

This document explains how to act and avoid interpretations on how to measure the dimensions of EN 1335-1:2020+A1:2022 using the test methods and chair measurement device (CMD) of ISO 24496:2021.
This document provides additional information not provided in ISO 24496:2021, further clarifications and examples to make measurement of the dimensions more precise and less interpretable.

  • Draft
    20 pages
    English language
    e-Library read for
    1 day

This document specifies requirements for the design, construction, operation, maintenance and inspection of stations for fuelling liquefied natural gas (LNG) to vehicles, including equipment, safety and control devices. This document also specifies the design, construction, operation, maintenance and inspection of fuelling stations using LNG as an onsite source for supplying compressed natural gas (CNG) to vehicles, commonly referred to as liquefied-to-compressed natural gas (LCNG) fuelling stations, including safety and control devices of the station and specific LCNG fuelling station equipment.
NOTE            Specific CNG equipment is dealt with in ISO 16923.
This document is applicable to fuelling stations receiving LNG and other liquefied methane-rich gases such as bio LNG which comply with local applicable gas composition regulations or with the gas quality requirements of ISO 13686.
This document covers all equipment from the LNG storage tank unloading connection up to (but not including) the fuelling nozzle on the vehicle. The LNG storage tank unloading connection itself and the vehicle fuelling nozzle are not covered in this document.
This document applies to fuelling stations having the following characteristics:
private access;
public access (self-service or assisted);
metered dispensing and non-metered dispensing;
fuelling stations with fixed LNG storage;
fuelling stations with mobile LNG storage;
movable fuelling stations;
mobile fuelling stations;
multi-fuel stations.
This document does not apply to:
equipment, piping, or tubing downstream of the gas pressure regulator for closed boil-off gas systems;
 liquefaction equipment.

  • Draft
    84 pages
    English language
    e-Library read for
    1 day

This document specifies a method of test for determining the ignitability of products by direct small flame impingement under zero impressed irradiance using vertically oriented test specimens.

  • Draft
    32 pages
    English language
    e-Library read for
    1 day

This document specifies requirements and methods of tests for mechanical and physical properties of toys.
This document applies to toys for children, toys being any product or material designed or intended, whether or not exclusively, for use in play by children of less than 14 years. It refers to new toys taking into account the period of foreseeable and normal use, and that the toys are used as intended or in a foreseeable way, bearing in mind the behaviour of children.
It includes specific requirements for toys intended for children under 36 months, children under 18 months and for children who are too young to sit up unaided. For example, soft-filled toys with simple features intended for holding and cuddling are considered as intended for use by children under 36 months.
NOTE   Information relating to the age grading and age determination of toys can be found in CEN ISO/TR 8124 8 [22] and the European Commission’s Guidance Documents on the Toy Safety Directive.
This document also specifies requirements for packaging, marking and labelling.
This document does not apply to the following toys:
-   automatic playing machines, whether coin operated or not, intended for public use;
-   toy vehicles equipped with combustion engines;
-   toy steam engines;
-   toy slings and toy catapults, supplied without projectiles;
-   remote control flying toys incorporating rotor blade(s) which are capable of spinning approximately horizontally, each blade being greater than 175 mm in length, measured from the centre of rotation to the blade tip, and with an overall mass of the flying toy greater than 50 g.
This document does not cover musical instruments, sports equipment or similar items but does include their toy counterparts.
Toy slings and toy catapults supplied with projectiles are covered by this document.
This document does not cover electrical safety aspects of toys which are covered by EN IEC 62115.
Furthermore, it does not cover the following items which, for the purpose of this document, are not considered as toys:
a)   decorative objects for festivities and celebrations;
b)   products for collectors, provided that the product or its packaging bears a visible and legible indication that it is intended for collectors of 14 years of age and above; examples of this category are:
1)   detailed and faithful scale models (see A.2),
2)   kits for the assembly of detailed scale models,
3)   folk dolls and decorative dolls and other similar articles,
4)   historical replicas of toys,
5)   reproductions of real fire arms;
c)   sports equipment including roller skates, inline skates, and skateboards intended for children with a body mass of more than 20 kg;
d)   bicycles with a maximum saddle height of more than 435 mm, measured as the vertical distance from the ground to the top of the seat surface, with the seat in a horizontal position and with the seat pillar set to the minimum insertion mark;
e)   scooters and other means of transport designed for sport, or which are intended to be used for travel on public roads or public pathways;
f)   electrically-driven vehicles which are intended to be used for travel on public roads, public pathways, or the pavement thereof;
g)   aquatic equipment intended to be used in deep water, and swimming learning devices for children, such as swim seats and swimming aids;
h)   puzzles with more than 500 pieces;
i)   guns and pistols using compressed gas, with the exception of water guns and water pistols;
j)   bows for archery over 120 cm long;
k)   fireworks, including percussion caps which are not specifically designed for toys;
l)   products and games using sharp-pointed missiles, such as sets of darts with metallic points;
m)   functional educational products, such as electric ovens, irons or other functional products, as defined in EU Directive 2009/48/EC (Toy Safety Directive) [21], operated at a nominal voltage exceeding 24 V which are sold exclusively for teaching purposes under adult supervision...

  • Draft
    214 pages
    English language
    e-Library read for
    1 day

This document specifies a mould (designated the type F ISO mould) for the injection moulding of plates with a preferred size of 80 mm × 120 mm, and a preferred thickness of 2 mm for single-point and multi-point data acquisition. Suitable test specimens according to ISO 20753 type A22 or B3 are then machined or stamped from the plates and used to obtain information on the anisotropy. For the design of plastic parts, this will provide upper and lower bounds for the tensile properties.
Investigation of the anisotropy of materials is a special procedure intended to provide guidance in the design of mouldings for end-use applications and is not intended as a quality control tool.
In the injection moulding of thermoplastic materials, the flow of molten polymer can influence the orientation of fillers such as fibreglass or the orientation of polymer chains, resulting in anisotropic behaviour.
For the purposes of this document, the flow direction is defined as the direction from the gate to the far end of the mould cavity and the cross direction as the direction perpendicular to the flow direction.
The type F mould is not intended to replace the type D mould used to determine the moulding shrinkage of thermoplastics.

  • Draft
    12 pages
    English language
    e-Library read for
    1 day

This document provides the minimum requirements for the knowledge and skills of assessment body testers and validators performing testing activities and validating activities for a conformance scheme using ISO/IEC 19790 and ISO/IEC 24759.

  • Draft
    39 pages
    English language
    e-Library read for
    1 day

This document specifies a method for the determination of the dimensions and of the bulk density of pre-shaped growing media.
In this document, "pre-shaped growing media":
-   includes solid, regular shaped, stable growing media sold, or which are ready for use, as a growing medium, where the dimensions and any corners are stable;
-   excludes plugs;
NOTE   For the determination of the dimensions and the bulk density of plugs, EN 18250:-  applies [1].
-   excludes solid growing media that has to be hydrated for it to form, varies in dimension with varying water content - for example, coir or peat slabs or growing bags.

  • Draft
    13 pages
    English language
    e-Library read for
    1 day

This document specifies requirements and test methods for activity toys.
This document also specifies requirements for:
-   separately sold accessories for, and components of activity toys;
-   separately sold swing elements that are ready for use on or in combination with an activity toy;
-   construction packages for activity toys including components used to build activity toys in accordance with a scheduled building instruction.
The scope of this document excludes:
-   playground equipment intended for public use dealt with in the EN 1176 series;
-   bow-mounted rocking activity toys such as rocking horses and similar toys, which are covered by specific requirements in EN 71-1;
-   toy pools with maximum depth of water over 400 mm measured, between the overflow level and the deepest point within the pool;
NOTE 1   For information regarding the classification of pools as toys see European Commission guidance document No. 8 on the application of the Directive 2009/48/EC on the safety of toys - Pools [1].
-   pools with maximum depth of water over 400 mm measured, between the overflow level and the deepest point within the pool, without play elements covered e.g. by the EN 16582 series or EN 16927.
NOTE 2   There is an enhanced risk of drowning in pools where the depth of water is in excess of 400 mm.
-   toy slides designed to be used in conjunction with domestic in-ground swimming pools;
-   trampolines for domestic use dealt with in EN 71-14;
-   powered blowers used to continuously inflate inflatable activity toys.
NOTE 3   Powered blowers used to continuously inflate inflatable activity toys are considered to be a household appliance and covered by requirements given in EN 60335-2-80.
See also Clause A.1.

  • Draft
    79 pages
    English language
    e-Library read for
    1 day

This document specifies a method for the determination of the transverse rupture strength of sintered metal materials, excluding hardmetals. The method is particularly suitable for comparing the sintered strength of a batch of metal powder with that of a reference powder or with a reference strength.
The method is applicable to sintered metal materials, excluding hardmetals, whether they have been subjected to heat treatment after sintering or not, and also to materials that have been sized or coined after sintering.
It is especially suitable for materials having a uniform hardness throughout their section and negligible ductility, i.e. a ductility corresponding to a permanent deformation of less than about 0,5 mm measured between the two supports during the transverse rupture strength determination.
NOTE            The permanent deformation can be measured with sufficient precision from the two fragments of the broken or cracked bar by indexing the lower surface. Alternatively, the deflection of a straight line drawn horizontally on the side of the test piece can be measured using an optical instrument such as a measuring microscope or optical comparator.

  • Draft
    8 pages
    English language
    e-Library read for
    1 day

This document specifies a method for measuring the Palmqvist toughness of hardmetals and cermets at room temperature by an indentation method. This document is applicable to a measurement of toughness, called Palmqvist toughness, calculated from the total length of cracks emanating from the corners of a Vickers hardness indentation, and it is intended for use with metal-bonded carbides and carbonitrides (normally called hardmetals, cermets or cemented carbides). The test procedures specified in this document are applicable for use at ambient temperatures, but can be extended to higher or lower temperatures by agreement. The test procedures specified in this document are also applicable for use in a normal laboratory-air environment. This document is not applicable for use in corrosive environments, such as strong acids or seawater.

  • Draft
    16 pages
    English language
    e-Library read for
    1 day

The present document specifies technical requirements, limits and test methods for Short Range Devices in the non-
specific category operating in the frequency range 25 MHz to 1 000 MHz.
The non specific SRD category is defined by the EU Commission Decision 2019/1345/EU [i.3] as:
"The non-specific short-range device category covers all kinds of radio devices, regardless of the application or the
purpose, which fulfil the technical conditions as specified for a given frequency band. Typical uses include telemetry,
telecommand, alarms, data transmissions in general and other applications".
These radio equipment types are capable of transmitting up to 500 mW effective radiated power and operating indoor or
outdoor.
NOTE: The relationship between the present document and the essential requirements of article 3.2 of
Directive 2014/53/EU [i.2] is given in Annex A

  • Standard
    107 pages
    English language
    sale 15% off
  • Standard
    107 pages
    English language
    sale 15% off
  • Standard
    107 pages
    English language
    e-Library read for
    1 day

DEN/ERM-TG28-561

  • Standard
    100 pages
    English language
    sale 15% off
  • Standard
    100 pages
    English language
    sale 15% off
  • Standard
    100 pages
    English language
    e-Library read for
    1 day

REN/MSG-TFES-15-3

  • Standard
    67 pages
    English language
    sale 15% off
  • Standard
    67 pages
    English language
    sale 15% off
  • Standard
    67 pages
    English language
    e-Library read for
    1 day

SIGNIFICANCE AND USE
5.1 The edgewise compressive strength of short sandwich construction specimens provides a basis for judging the load-carrying capacity of the construction in terms of developed facing stress.  
5.2 This test method provides a standard method of obtaining sandwich edgewise compressive strengths for panel design properties, material specifications, research and development applications, and quality assurance.  
5.3 The reporting section requires items that tend to influence edgewise compressive strength to be reported; these include materials, fabrication method, facesheet lay-up orientation (if composite), core orientation, results of any nondestructive inspections, specimen preparation, test equipment details, specimen dimensions and associated measurement accuracy, environmental conditions, speed of testing, failure mode, and failure location.
SCOPE
1.1 This test method covers the compressive properties of structural sandwich construction in a direction parallel to the sandwich facing plane. Permissible core material forms include those with continuous bonding surfaces (such as balsa wood and foams) as well as those with discontinuous bonding surfaces (such as honeycomb).  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    8 pages
    English language
    sale 15% off

SIGNIFICANCE AND USE
5.1 Motor O.N. correlates with commercial automotive spark-ignition engine antiknock performance under severe conditions of operation.  
5.2 Motor O.N. is used by engine manufacturers, petroleum refiners and marketers, and in commerce as a primary specification measurement related to the matching of fuels and engines.  
5.2.1 Empirical correlations that permit calculation of automotive antiknock performance are based on the general equation:
Values of k1, k2, and k3 vary with vehicles and vehicle populations and are based on road-octane number determinations.  
5.2.2 Motor O.N., in conjunction with Research O.N., defines the antiknock index of automotive spark-ignition engine fuels, in accordance with Specification D4814. The antiknock index of a fuel approximates the road octane ratings for many vehicles, is posted on retail dispensing pumps in the United States, and is referred to in vehicle manuals.
This is more commonly presented as:
5.3 Motor O.N. is used for measuring the antiknock performance of spark-ignition engine fuels that contain oxygenates.  
5.4 Motor O.N. is important in relation to the specifications for spark-ignition engine fuels used in stationary and other nonautomotive engine applications.  
5.5 Motor O.N. is utilized to determine, by correlation equation, the Aviation method O.N. or performance number (lean-mixture aviation rating) of aviation spark-ignition engine fuel.7
SCOPE
1.1 This laboratory test method covers the quantitative determination of the knock rating of liquid spark-ignition engine fuel in terms of Motor octane number, including fuels that contain up to 25 % v/v of ethanol. However, this test method may not be applicable to fuel and fuel components that are primarily oxygenates.2 The sample fuel is tested in a standardized single cylinder, four-stroke cycle, variable compression ratio, carbureted, CFR engine run in accordance with a defined set of operating conditions. The octane number scale is defined by the volumetric composition of primary reference fuel blends. The sample fuel knock intensity is compared to that of one or more primary reference fuel blends. The octane number of the primary reference fuel blend that matches the knock intensity of the sample fuel establishes the Motor octane number.  
1.2 The octane number scale covers the range from 0 to 120 octane number, but this test method has a working range from 40 to 120 octane number. Typical commercial fuels produced for automotive spark-ignition engines rate in the 80 to 90 Motor octane number range. Typical commercial fuels produced for aviation spark-ignition engines rate in the 98 to 102 Motor octane number range. Testing of gasoline blend stocks or other process stream materials can produce ratings at various levels throughout the Motor octane number range.  
1.3 The values of operating conditions are stated in SI units and are considered standard. The values in parentheses are the historical inch-pounds units. The standardized CFR engine measurements continue to be in inch-pound units only because of the extensive and expensive tooling that has been created for this equipment.  
1.4 For purposes of determining conformance with all specified limits in this standard, an observed value or a calculated value shall be rounded “to the nearest unit” in the last right-hand digit used in expressing the specified limit, in accordance with the rounding method of Practice E29.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For more specific hazard statements, see Section 8, 14.4.1, 15.5.1, 16.6.1, Annex A1, A2.2.3.1, A2.2.3.3(6) and (9), A2.3.5, X3.3.7, X4.2.3.1, X4.3.4.1, X4.3.9.3, X4.3.12.4, and X4.5.1.8. ...

  • Standard
    59 pages
    English language
    sale 15% off
  • Standard
    59 pages
    English language
    sale 15% off

ABSTRACT
This specification covers grades of fuel oil intended for use in various types of fuel-oil-burning equipment under various climatic and operating conditions. These grades include the following: Grades No. 1 S5000, No. 1 S500, No. 2 S5000, and No. 2 S500 for use in domestic and small industrial burners; Grades No. 1 S5000 and No. 1 S500 adapted to vaporizing type burners or where storage conditions require low pour point fuel; Grades No. 4 (Light) and No. 4 (Heavy) for use in commercial/industrial burners; and Grades No. 5 (Light), No. 5 (Heavy), and No. 6 for use in industrial burners. Preheating is usually required for handling and proper atomization. The grades of fuel oil shall be homogeneous hydrocarbon oils, free from inorganic acid, and free from excessive amounts of solid or fibrous foreign matter. Grades containing residual components shall remain uniform in normal storage and not separate by gravity into light and heavy oil components outside the viscosity limits for the grade. The grades of fuel oil shall conform to the limiting requirements prescribed for: (1) flash point, (2) water and sediment, (3) physical distillation or simulated distillation, (4) kinematic viscosity, (5) Ramsbottom carbon residue, (6) ash, (7) sulfur, (8) copper strip corrosion, (9) density, and (10) pour point. The test methods for determining conformance to the specified properties are given.
SCOPE
1.1 This specification (see Note 1) covers grades of fuel oil intended for use in various types of fuel-oil-burning equipment under various climatic and operating conditions. These grades are described as follows:  
1.1.1 Grades No. 1 S5000, No. 1 S500, No. 1 S15, No. 2 S5000, No. 2 S500, and No. 2 S15 are middle distillate fuels for use in domestic and small industrial burners. Grades No. 1 S5000, No. 1 S500, and No. 1 S15 are particularly adapted to vaporizing type burners or where storage conditions require low pour point fuel.  
1.1.2 Grades B6–B20 S5000, B6–B20 S500, and B6–B20 S15 are middle distillate fuel/biodiesel blends for use in domestic and small industrial burners.  
1.1.3 Grades No. 4 (Light) and No. 4 are heavy distillate fuels or middle distillate/residual fuel blends used in commercial/industrial burners equipped for this viscosity range.  
1.1.4 Grades No. 5 (Light), No. 5 (Heavy), and No. 6 are residual fuels of increasing viscosity and boiling range, used in industrial burners. Preheating is usually required for handling and proper atomization.  
Note 1: For information on the significance of the terminology and test methods used in this specification, see Appendix X1.
Note 2: A more detailed description of the grades of fuel oils is given in X1.3.  
1.2 This specification is for the use of purchasing agencies in formulating specifications to be included in contracts for purchases of fuel oils and for the guidance of consumers of fuel oils in the selection of the grades most suitable for their needs.  
1.3 Nothing in this specification shall preclude observance of federal, state, or local regulations which can be more restrictive.  
1.4 The values stated in SI units are to be regarded as standard.  
1.4.1 Non-SI units are provided in Table 1 and Table 2 and in 7.1.2.1/7.1.2.2 because these are common units used in the industry.
Note 3: The generation and dissipation of static electricity can create problems in the handling of distillate burner fuel oils. For more information on the subject, see Guide D4865.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Technical specification
    13 pages
    English language
    sale 15% off
  • Technical specification
    13 pages
    English language
    sale 15% off

SIGNIFICANCE AND USE
4.1 This practice is useful as a screening basis for acceptance or rejection of transparencies during manufacturing so that units with identifiable flaws will not be carried to final inspection for rejection at that time.  
4.2 This practice may also be employed as a go-no go technique for acceptance or rejection of the finished product.  
4.3 This practice is simple, inexpensive, and effective. Flaws identified by this practice, as with other optical methods, are limited to those that produce temperature gradients when electrically powered. Any other type of flaw, such as minor scratches parallel to the direction of electrical flow, are not detectable.
SCOPE
1.1 This practice covers a standard procedure for detecting flaws in the conductive coating (heater element) by the observation of polarized light patterns.  
1.2 This practice applies to coatings on surfaces of monolithic transparencies as well as to coatings imbedded in laminated structures.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Section 6.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    4 pages
    English language
    sale 15% off

SIGNIFICANCE AND USE
4.1 Different electroplating systems can be corroded under the same conditions for the same length of time. Differences in the average values of the radius or half-width or of penetration into an underlying metal layer are significant measures of the relative corrosion resistance of the systems. Thus, if the pit radii are substantially higher on samples with a given electroplating system, when compared to other systems, a tendency for earlier failure of the former by formation of visible pits is indicated. If penetration into the semi-bright nickel layer is substantially higher, a tendency for earlier failure by corrosion of basis metal is evident.
SCOPE
1.1 This test method provides a means for measuring the average dimensions and number of corrosion sites in an electroplated decorative nickel plus chromium or copper plus nickel plus chromium coating on steel after the coating has been subjected to corrosion tests. This test method is useful for comparing the relative corrosion resistances of different electroplating systems and for comparing the relative corrosivities of different corrosive environments. The numbers and sizes of corrosion sites are related to deterioration of appearance. Penetration of the electroplated coatings leads to appearance of basis metal corrosion products.  
1.2 The values stated in SI units are to be regarded as the standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    3 pages
    English language
    sale 15% off

SIGNIFICANCE AND USE
5.1 Since the information provided by this test method is largely qualitative in nature, specific limits covering the following characteristics are required in referring to this test method in specifications for kerosene:  
5.1.1 Duration of the test: 16 h is understood, if not otherwise specified;  
5.1.2 Permissible change in flame shape and dimensions during the test;  
5.1.3 Description of the acceptable appearance of the chimney deposit.
SCOPE
1.1 This test method covers the qualitative determination of the burning properties of kerosene to be used for illuminating purposes. (Warning—Combustible. Vapor harmful.)
Note 1: The corresponding Energy Institute (IP) test method is IP 10 which features a quantitative evaluation of the wick-char-forming tendencies of the kerosene, whereas Test Method D187 features a qualitative performance evaluation of the kerosene. Both test methods subject the kerosene to somewhat more severe operating conditions than would be experienced in typical designated applications.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning statements appear throughout the test method.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    5 pages
    English language
    sale 15% off
  • Standard
    5 pages
    English language
    sale 15% off

SIGNIFICANCE AND USE
4.1 This practice shall be used when ultrasonic inspection is required by the order or specification for inspection purposes where the acceptance of the forging is based on limitations of the number, amplitude, or location of discontinuities, or a combination thereof, which give rise to ultrasonic indications.  
4.2 The acceptance criteria shall be clearly stated as order requirements.
SCOPE
1.1 This practice for ultrasonic examination covers turbine and generator steel rotor forgings covered by Specifications A469/A469M, A470/A470M, A768/A768M, and A940/A940M. This practice shall be used for contact testing only.  
1.2 This practice describes a basic procedure of ultrasonically inspecting turbine and generator rotor forgings. It does not restrict the use of other ultrasonic methods such as reference block calibrations when required by the applicable procurement documents nor is it intended to restrict the use of new and improved ultrasonic test equipment and methods as they are developed.  
1.3 This practice is intended to provide a means of inspecting cylindrical forgings so that the inspection sensitivity at the forging center line or bore surface is constant, independent of the forging or bore diameter. To this end, inspection sensitivity multiplication factors have been computed from theoretical analysis, with experimental verification. These are plotted in Fig. 1 (bored rotors) and Fig. 2 (solid rotors), for a true inspection frequency of 2.25 MHz, and an acoustic velocity of 2.30 in./s × 105 in./s [5.85 cm/s × 105 cm/s]. Means of converting to other sensitivity levels are provided in Fig. 3. (Sensitivity multiplication factors for other frequencies may be derived in accordance with X1.1 and X1.2 of Appendix X1.)  
FIG. 1 Bored Forgings
Note 1: Sensitivity multiplication factor such that a 10 % indication at the forging bore surface will be equivalent to a 1/8 in. [3 mm] diameter flat bottom hole. Inspection frequency: 2.0 MHz or 2.25 MHz. Material velocity: 2.30 in./s × 105 in./s [5.85 cm/s × 105 cm/s].
FIG. 2 Solid Forgings
Note 1: Sensitivity multiplication factor such that a 10 % indication at the forging centerline surface will be equivalent to a 1/8 in. [3 mm] diameter flat bottom hole. Inspection frequency: 2.0 MHz or 2.25 MHz. Material velocity: 2.30 in./s × 105 in./s [5.85 cm/s × 105 cm/s].
FIG. 3 Conversion Factors to Be Used in Conjunction with Fig. 1 and Fig. 2 if a Change in the Reference Reflector Diameter is Required
1.4 Considerable verification data for this method have been generated which indicate that even under controlled conditions very significant uncertainties may exist in estimating natural discontinuities in terms of minimum equivalent size flat-bottom holes. The possibility exists that the estimated minimum areas of natural discontinuities in terms of minimum areas of the comparison flat-bottom holes may differ by 20 dB (factor of 10) in terms of actual areas of natural discontinuities. This magnitude of inaccuracy does not apply to all results but should be recognized as a possibility. Rigid control of the actual frequency used, the coil bandpass width if tuned instruments are used, and so forth, tend to reduce the overall inaccuracy which is apt to develop.  
1.5 This practice for inspection applies to solid cylindrical forgings having outer diameters of not less than 2.5 in. [64 mm] nor greater than 100 in. [2540 mm]. It also applies to cylindrical forgings with concentric cylindrical bores having wall thicknesses of 2.5 [64 mm] in. or greater, within the same outer diameter limits as for solid cylinders. For solid sections less than 15 in. [380 mm] in diameter and for bored cylinders of less than 7.5 in. [190 mm] wall thickness the transducer used for the inspection will be different than the transducer used for larger sections.  
1.6 Supplementary requirements of an optional nature are provided for use at the option of the...

  • Standard
    8 pages
    English language
    sale 15% off
  • Standard
    8 pages
    English language
    sale 15% off

ABSTRACT
This specification covers coated glass mat water-resistant gypsum backing panel designed for use on ceilings and walls in bath and shower areas as a base for the application of ceramic or plastic tile. Coated glass mat water-resistant gypsum backing panel shall consist of a noncombustible water-resistant gypsum core, surfaced with glass mat, partially or completely embedded in the core, and with a water-resistant coating on one surface. The specimens shall be tested for flexural strength, humidified deflection, core hardness, end hardness, edge hardness, nail pull resistance, water resistance, and surface water absorption. Coated glass mat water-resistant gypsum backing panel shall have surfaces true and free of imperfections that render the panel unfit for its designed use.
SCOPE
1.1 This specification covers coated glass mat water-resistant gypsum backing panel designed for use on ceilings and walls in bath and shower areas as a base for the application of ceramic or plastic tile.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Within the text, the SI units are shown in brackets.  
1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Technical specification
    3 pages
    English language
    sale 15% off
  • Technical specification
    3 pages
    English language
    sale 15% off

SIGNIFICANCE AND USE
5.1 Often the most critical stress to which a sandwich panel core is subjected is shear. The effect of repeated shear stresses on the core material can be very important, particularly in terms of durability under various environmental conditions.  
5.2 This test method provides a standard method of obtaining the sandwich core shear fatigue response. Uses include screening candidate core materials for a specific application, developing a design-specific core shear cyclic stress limit, and core material research and development.
Note 3: This test method may be used as a guide to conduct spectrum loading. This information can be useful in the understanding of fatigue behavior of core under spectrum loading conditions, but is not covered in this standard.  
5.3 Factors that influence core fatigue response and shall therefore be reported include the following: core material, core geometry (density, cell size, orientation, etc.), specimen geometry and associated measurement accuracy, specimen preparation, specimen conditioning, environment of testing, specimen alignment, loading procedure, loading frequency, force (stress) ratio and speed of testing (for residual strength tests).
Note 4: If a sandwich panel is tested using the guidance of this standard, the following may also influence the fatigue response and should be reported: facing material, adhesive material, methods of material fabrication, adhesive thickness and adhesive void content. Further, core-to-facing strength may be different between precured/bonded and co-cured facings in sandwich panels with the same core and facing materials.
SCOPE
1.1 This test method determines the effect of repeated shear forces on core material used in sandwich panels. Permissible core material forms include those with continuous bonding surfaces (such as balsa wood and foams) as well as those with discontinuous bonding surfaces (such as honeycomb).  
1.2 This test method is limited to test specimens subjected to constant amplitude uniaxial loading, where the machine is controlled so that the test specimen is subjected to repetitive constant amplitude force (stress) cycles. Either shear stress or applied force may be used as a constant amplitude fatigue variable.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Within the text, the inch-pound units are shown in brackets.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    6 pages
    English language
    sale 15% off

SIGNIFICANCE AND USE
4.1 The force required to separate a metallic coating from its plastic substrate is determined by the interaction of several factors: the generic type and quality of the plastic molding compound, the molding process, the process used to prepare the substrate for electroplating, and the thickness and mechanical properties of the metallic coating. By holding all others constant, the effect on the peel strength by a change in any one of the above listed factors may be noted. Routine use of the test in a production operation can detect changes in any of the above listed factors.  
4.2 The peel test values do not directly correlate to the adhesion of metallic coatings on the actual product.  
4.3 When the peel test is used to monitor the coating process, a large number of plaques should be molded at one time from a same batch of molding compound used in the production moldings to minimize the effects on the measurements of variations in the plastic and the molding process.
SCOPE
1.1 This test method gives two procedures for measuring the force required to peel a metallic coating from a plastic substrate.2 One procedure (Procedure A) utilizes a universal testing machine and yields reproducible measurements that can be used in research and development, in quality control and product acceptance, in the description of material and process characteristics, and in communications. The other procedure (Procedure B) utilizes an indicating force instrument that is less accurate and that is sensitive to operator technique. It is suitable for process control use.  
1.2 The tests are performed on standard molded plaques. This method does not cover the testing of production electroplated parts.  
1.3 The tests do not necessarily measure the adhesion of a metallic coating to a plastic substrate because in properly prepared test specimens, separation usually occurs in the plastic just beneath the coating-substrate interface rather than at the interface. It does, however, reflect the degree that the process is controlled.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    4 pages
    English language
    sale 15% off

DEN/ERM-TGAERO-31-2

  • Standard
    38 pages
    English language
    sale 15% off
  • Standard
    38 pages
    English language
    sale 15% off
  • Standard
    38 pages
    English language
    e-Library read for
    1 day