23 - FLUID SYSTEMS AND COMPONENTS FOR GENERAL USE
ICS 23 Details
FLUID SYSTEMS AND COMPONENTS FOR GENERAL USE
FLUIDSYSTEME UND -BAUTEILE FUR GENERELLEN GEBRAUCH
FLUIDIQUE ET COMPOSANTS A USAGE GENERAL
TEKOČINSKI SISTEMI IN KOMPONENTE ZA SPLOŠNO RABO
General Information
Frequently Asked Questions
ICS 23 is a classification code in the International Classification for Standards (ICS) system. It covers "FLUID SYSTEMS AND COMPONENTS FOR GENERAL USE". The ICS is a hierarchical classification system used to organize international, regional, and national standards, facilitating the search and identification of standards across different fields.
There are 13399 standards classified under ICS 23 (FLUID SYSTEMS AND COMPONENTS FOR GENERAL USE). These standards are published by international and regional standardization bodies including ISO, IEC, CEN, CENELEC, and ETSI.
The International Classification for Standards (ICS) is a hierarchical classification system maintained by ISO to organize standards and related documents. It uses a three-level structure with field (2 digits), group (3 digits), and sub-group (2 digits) codes. The ICS helps users find standards by subject area and enables statistical analysis of standards development activities.
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This document specifies the toughness requirements of metallic materials for use at a temperature below −80 °C to ensure their suitability for cryogenic vessels. This document does not apply to unalloyed steels and cast materials.
- Standard7 pagesEnglish languagesale 15% off
- Standard8 pagesFrench languagesale 15% off
This document specifies calculation methods for determining the required mass flow to be relieved for each specified conditions described in Table 1. Recommendations for pressure relief devices for cryostats are given in Annex A.
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This document specifies the mounting dimensions required for interchangeability of rod-end spherical eyes of pneumatic cylinders. The rod-end spherical eyes have been designed specifically for the use with 1 000 kPa [10 bar1)] series cylinders manufactured in accordance with ISO 6432 and ISO 15552, but this does not limit their application. The spherical bearing end eyes are used on piston rods of pneumatic cylinders for mechanically transmitting the cylinder force under oscillatory rotational and tilting movements. The design of the rod-end spherical eyes is based on the maximum forces resulting from the specified internal diameter of the cylinders and pressure according to ISO 6432, ISO 15552 and ISO 21287. 1)1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.
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- Draft38 pagesEnglish languagee-Library read for1 day
This document specifies a test method to determine if a fitting will fail in crushing mode under compression before a predefined percentage deformation of moulded fittings for thermoplastics piping systems and provides recommended percentage deformation for fittings (see Annex A). This document applies to fittings made from unplasticized poly(vinyl chloride) (PVC-U), high-impact poly(vinyl chloride) (PVC-HI), chlorinated poly(vinyl chloride) (PVC-C), polyethylene (PE), polypropylene (PP), acrylonitrile-butadiene-styrene (ABS), poly(vinylidene difluoride) (PVDF), poly(phenyl sulfone) (PPSU) and unplasticized polyamide (PA-U). This document can also be applied to moulded fittings made from other thermoplastics, in which case the test conditions can differ.
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This document specifies requirements for pipe and integral joints of higher level of impact resistant PVC-M for the conveyance of water and waste water under pressure. The pipes are intended for installation below and above ground where they are not exposed to direct sunlight. This document also specifies the test parameters for the test methods in this document. This document is applicable to extruded PVC-M pipes without a socket and pipes with a socket (integral or not), intended to be used for the following purposes: water mains and services buried in the ground; conveyance of water above ground for both outside and inside buildings; buried and above-ground drainage and sewerage under pressure. This document is applicable to piping systems intended for the supply of water under pressure up to and including 25 °C (cold water) intended for human consumption and for general purposes as well as for waste water under pressure. This document specifies pipes for the conveyance of water and waste water up to and including 45 °C. For temperatures between 25 °C and 45 °C, Figure A.1 applies. NOTE 1 The producer and the end-user can come to agreement on the possibilities of use for temperatures above 45 °C on a case-by-case basis This document specifies a range of pipe sizes and pressure classes, and gives requirements concerning colours. NOTE 2 It is the responsibility of the purchaser or specifier to make the appropriate selections concerning pipe sizes, pressure classes and colours, taking into account their particular requirements and any relevant national regulations and installation practices or codes.
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This document specifies methods and procedures for testing, calculating and determining the energy efficiency index (EEI) of booster sets.
A booster set is either a single pump unit or an assembly of pump units connected in parallel with a maximum hydraulic power of 150 kW, a minimum rated flow of 6 m3/h (0,001 667 m3/s), operated with backflow prevention and additional components influencing hydraulic performance and with components necessary to control pressure or provide flow in open loops inside buildings and which is placed on the market and/or put into service as one single product and its intended use is to pump clean water and does not have a self-priming functionality.
A booster set with a rated flow below 6 m3/h is composed using pumps that comply with EN 17038 2.
- Draft68 pagesEnglish languagee-Library read for1 day
This document describes the criteria and procedures used by the United States National Institute of Standards and Technology (NIST) to certify the calibration material SRM 2806d, which is used in the primary calibration of liquid automatic particle counters (APCs). SRM 2806d is a suspension of SAE 5 - 80 μm test dust in hydraulic fluid with a cumulative particle concentration determined through a consensus measurement processes, interlaboratory study (ILS), utilizing APCs. The original projected area equivalent diameters for SRM 2806 were certified using a scanning electron microscope (SEM) and image analysis techniques traceable to the meter through the NIST line scan interferometer.
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This document specifies requirements and test methods for pipes and fittings which are part of piping systems for the rehabilitation, by means of renovation and trenchless replacement, of underground gas supply networks.
It is applicable to polyethylene (PE) pipes, fittings and assemblies, as manufactured and as installed. It is not applicable to the existing pipeline.
This document is applicable to the following technique families for renovation, intended to be used at an operating temperature of 20 °C as a reference temperature:
lining with continuous pipes;
lining with close-fit pipes.
This document is applicable to the following technique families for trenchless replacement, intended to be used at an operating temperature of 20 °C as a reference temperature:
pipe bursting and pipe extraction;
horizontal directional drilling and impact moling.
This document is applicable to:
PE solid wall single layered pipes (nominal outside diameter, dn), including any identification stripes;
PE pipes with co-extruded layers on either or both the outside and inside of the pipe (total outside diameter, dn), as specified in Annex D, where all layers have the same minimum required strength (MRS) rating.
Furthermore, when used with lining with continuous pipes and trenchless replacement, this document is applicable to:
PE coated pipes (outside diameter, dn) having a peelable, contiguous, thermoplastics additional layer on the outside of the pipe (“coated pipe”), as specified in Annex D.
NOTE When used with lining with close-fit lining pipes, the lining pipe is reduced in the factory or on site to provide a close-fitting independent or interactive pressure pipe liner.
This document is applicable to jointing by means of butt fusion and electrofusion and to fabricated and injection-moulded fittings and mechanical connections of PE.
This document is not applicable to push-fit jointed discrete pipes assembled as part of the trenchless installation process.
- Standard50 pagesEnglish languagee-Library read for1 day
This document specifies the technical delivery requirements for seamless and welded butt-welding fittings (elbows, concentric and eccentric reducers, equal and reducing tees, caps) made of wrought carbon steel without specific inspection requirements.
It specifies:
a) steel grade and its chemical compositions;
b) mechanical properties;
c) dimensions and tolerances;
d) requirements for inspection and testing;
e) inspection documents;
f) marking;
g) protection and packaging.
- Standard33 pagesEnglish languagee-Library read for1 day
This document specifies requirements for unfired pressure vessels and their parts made of titanium and titanium alloys in addition to the general requirements for unfired pressure vessels under EN 13445-1:2026 to EN 13445-5:2026.
NOTE 1 Cast materials, HIP and additive manufacturing are not included in this version. Details regarding such materials will be subject to an amendment to or a revision of this European Standard.
NOTE 2 Materials in Groups 51.4 and 54 are not included in this version.
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This document defines the terms, definitions, quantities, symbols and units that are used throughout the EN 13445 series and gives general information on the design and manufacturing of vessels under this standard.
It also contains instructions on how to use the standard (Annex A) as well as an index which covers the whole standard (Annex B). This information is aimed to aid users of the EN 13445 series.
This document applies to unfired pressure vessels with a maximum allowable pressure greater than 0,5 bar gauge but may be used for vessels operating at lower pressures, including vacuum.
This document is not applicable to pressure vessels of the following types:
- vessels of riveted construction;
- vessels of lamellar cast iron or any other materials not included in Parts 2, 6, or 8 of the standard;
- multilayered, autofrettaged or pre-stressed vessels.
This document can be applied to the following pressure vessels, provided that account is taken of additional and/or alternative requirements resulting from the hazard analysis and from rules or instructions specific for:
- transportable vessels;
- items specifically designed for nuclear use;
- pressure vessels with a risk of overheating.
NOTE EN 14222 covers electrically fired boilers made from stainless steel and can be used as an example of additional requirements for such vessels.
Other European standards apply to industrial piping (EN 13480 series) and to water tube and shell boilers (EN 12952 series and EN 12953 series).
- Standard62 pagesEnglish languagee-Library read for1 day
This document specifies the requirements for steel products used for unfired pressure vessels.
For some metallic materials other than steel, such as spheroidal graphite cast iron, aluminium, nickel, copper, titanium, requirements are or will be formulated in separate parts of this document.
For metallic materials which are not covered by a harmonized material standard and are not likely to be in near future, specific rules are given in this part or the above cited parts of this document.
- Standard87 pagesEnglish languagee-Library read for1 day
This Part of this document specifies requirements for the design of unfired pressure vessels covered by EN 13445-1: 2026 and constructed of steels in accordance with EN 13445-2:2026.
EN 13445-5: 2026, Annex C specifies requirements for the design of access and inspection openings, closing mechanisms and special locking elements.
This Part applies to design of vessels before putting into service. It may be used for in service calculation or analysis subject to appropriate adjustment.
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This Part of this document specifies the inspection and testing of individual and serially produced pressure vessels made of steels in accordance with EN 13445-2:2021.
Special provisions for cyclic operation are given in Annex G of this Part.
Special provisions for vessels or vessel parts working in the creep range are given in Annex F and Annex I of this Part.
NOTE The responsibilities of parties involved in the conformity assessment procedures are given in Directive 2014/68/EU. Guidance on this can be found in CR 13445-7.
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This document specifies requirements for unfired pressure vessels and their parts made of aluminium and aluminium alloys in addition to the general requirements for unfired pressure vessels under EN 13445:2026 Parts 1 to 5. This document specifies unfired pressure vessels for loads up to 500 full cycles.
NOTE Cast materials are not included in this version. Details regarding cast materials will be subject to an amendment to or a revision of this document.
- Standard35 pagesEnglish languagee-Library read for1 day
This document applies to industrial metallic valves for hydrogen use. It contains recommendations and additional requirements applicable to material selection, design, manufacture, and final assessment.
This document addresses the following four services/damage mechanisms, which might exist in combinations:
— low temperature applications;
— hydrogen environmental embrittlement (HEE) or hydrogen-induced cracking (HIC);
— high temperature hydrogen attack (HTHA);
— hydrogen service with cyclic loads (fatigue).
This document considers the difference between gaseous hydrogen (GH2) and liquid hydrogen (LH2), where necessary.
The additional provisions set out in this document do not cover corrosion such as electro-chemical corrosion of metals under participation of hydrogen (e.g. sour gas).
This document is based on the requirements contained in the standards specified below:
— applications with a maximum allowable pressure PS greater than 0,5 bar in accordance with the European legislation for pressure equipment, the applicable provisions of EN 16668 apply;
— additional requirements for valves in chemical and petrochemical applications are specified in EN 12569;
— additional requirements for valves in gas distribution systems are specified in EN 13774;
— additional requirements for valves in gas transportation systems are specified in EN 14141.
- Standard65 pagesEnglish languagee-Library read for1 day
This document specifies requirements for the manufacture of unfired pressure vessels and their parts, made of steels, including their connections to non-pressure parts. It specifies requirements for material traceability, manufacturing tolerances, welding requirements, requirements for permanent joints other than welding, production tests, forming requirements, heat treatment, repairs and finishing operations.
- Standard71 pagesEnglish languagee-Library read for1 day
This Part 10 of this document specifies requirements for unfired pressure vessels and their parts made of nickel and nickel alloys (see 3.1) in addition to the general requirements for unfired pressure vessels under EN 13445-1:2026, EN 13445-2:2026, EN 13445-3:2026, EN 13445-4:2026 and EN 13445-5:2026.
NOTE Cast materials are not included in this version. Details regarding cast materials will be subject to an amendment to or a revision of this document.
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This document specifies requirements for the design, materials, manufacturing and testing of pressure vessels and pressure vessel parts intended for use with a maximum allowable pressure, PS, equal or less than:
- 100 bar when containing gases or liquids in group 1 or 2;
- 1 000 bar when containing liquids in group 2 only
and shell wall thicknesses not exceeding 60 mm, which are constructed of ferritic or austenitic spheroidal graphite cast iron. The thickness limitation of the shell does not apply to thickness of flanges, reinforcements, bosses, etc.
NOTE 1 Austenitic spheroidal graphite cast iron grades are principally used for high and low temperature applications and for their corrosion resistance properties.
NOTE 2 The allowable grades of spheroidal graphite cast iron are listed in Tables 5.1-1 and 5.1-2. Service conditions are given in Clause 4.
This document does not include lamellar graphite cast iron grades for ferritic and austenitic grades, with an elongation after fracture equal or less than 15 % which are explicitly excluded. Requirements for the use of cast irons with an elongation after fracture equal or less than 15 % are given in EN 15776.
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This document specifies the physical, technical and metrological conditions to be fulfilled when calibrations of vacuum gauges are performed by direct comparison with a reference gauge at a calibration laboratory, whether accredited or not. From the conditions described, the design of an apparatus that can perform vacuum gauge calibrations in an adequate manner can be deduced. This document is applicable for calibration of all types of vacuum gauges. Vacuum gauges can consist of several parts; typically, these are: gauge head, cable, and control unit. This entire set is considered as the unit to be calibrated. If only the gauge head (i.e. the part of the vacuum gauge directly exposed to the vacuum) is calibrated, all set-ups and conditions are recorded such that the user of the calibrated gauge head is able to perform the measurements in the same manner as during the calibration. This document does not give guidance on how to treat special types of vacuum gauges, be they reference standards or units under calibration. The applicable pressure range for calibrations treated in this document depends on the realized design of the calibration apparatus and on the type of reference gauge, and the range varies in its limits from 10−6 Pa to 133 kPa.
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IEC 60335-2-40:2024 deals with the safety of electric heat pumps, sanitary hot water heat pumps and air conditioners, incorporating motor-compressors as well as hydronic fan coils units, dehumidifiers (with or without motor-compressors), thermoelectric heat pumps and partial units, their maximum rated voltage being not more than 300 V for single phase appliances and 600 V for other appliances including direct current (DC) supplied appliances and battery-operated appliances.
Appliances not intended for normal household use but which nevertheless can be a source of danger to the public, such as appliances intended to be used by laypersons in shops, in light industry and on farms, are within the scope of this standard.
The appliances referenced above can consist of one or more factory-made assemblies. If provided in more than one assembly, the separate assemblies are used together, and the requirements are based on the use of matched assemblies.
A definition of ‘motor-compressor’ is given in IEC 60335-2-34, which includes the statement that the term motor-compressor is used to designate either a hermetic motor-compressor or semi-hermetic motor-compressor.
Requirements for containers intended for storage of the heated water included in sanitary hot water heat pumps are, in addition, covered by IEC 60335-2-21.
This standard does not take into account refrigerants other than group A1, A2L, A2 and A3 as defined by ISO 817. Flammable refrigerants are limited to those of a molar mass of more than or equal to 42 kg/kmol based on WCF (worst case formulation) as specified in ISO 817.
As far as practical, this standard deals with common hazards presented by appliances that are encountered in normal use and assumes that installation, servicing, decommissioning, and disposal are safely handled by competent persons and accidental release of refrigerants is avoided. However, it does not specify the criteria to ensure competence of persons during installation, servicing and disposal. Safety requirements during disposal are not specified in this standard.
Annex HH provides informative requirements on competence of personnel. Criteria for competence of personnel for the purpose of certification schemes can be found in ISO 22712.
Unless specifications are covered by this standard, including the annexes, requirements for refrigerating safety are covered by:
– ISO 5149-1:2014, ISO 5149-1:2014/AMD1:2015, and ISO 5149-1:2014/AMD2:2021,
– ISO 5149-2:2014 and ISO 5149-2:2014/AMD1:2020,
– ISO 5149-3:2014 and ISO 5149-3:2014/AMD1:2021.
Supplementary heaters, or a provision for their separate installation, are within the scope of this standard, but only heaters which are designed as a part of the appliance package, the controls being incorporated in the appliance.
Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on-board ships or aircraft, additional requirements can be necessary;
– in many countries, additional requirements are specified, for example, by the national health authorities responsible for the protection of labour and the national authorities responsible for storage, transportation, building constructions and installations.
This standard does not apply to
– humidifiers intended for use with heating and cooling equipment (IEC 60335-2-88);
– appliances designed exclusively for industrial processing;
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas).
This eighth edition cancels and replaces the seventh 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) Clause 12 : Part 1, Clause 12 has been made applicable;
b) Clause 19: requirement added for double wall heat exchangers to be resistant against freezing;
c) Clause 20: requirement modified for when
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- Standard308 pagesEnglish and French languagesale 15% off
This document specifies the technical delivery requirements for seamless and welded butt-welding fittings (elbows, concentric and eccentric reducers, equal and reducing tees, caps) made of wrought carbon steel without specific inspection requirements.
It specifies:
a) steel grade and its chemical compositions;
b) mechanical properties;
c) dimensions and tolerances;
d) requirements for inspection and testing;
e) inspection documents;
f) marking;
g) protection and packaging.
- Standard33 pagesEnglish languagee-Library read for1 day
This document lists gas cylinders valve outlets in use. This document provides details of thread types and sizes. NOTE Complete descriptions of particular valve outlets are given in national standards.
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IEC 61514-2:2026 specifies design reviews and tests intended to measure and determine the static and dynamic performance, the degree of intelligence and the communication capabilities of single-acting or double-acting intelligent valve positioners. The tests can be applied to positioners which receive standard analogue electrical input signals (as specified in IEC 60381-1 or IEC 60381-2) and/or digital signals via a data communication link (for example Fieldbus) and have a pneumatic output. An intelligent valve positioner as defined in Clause 3 is an instrument that uses for performing its functions digital techniques for data processing, decision-making and bi-directional communication. It can be equipped with additional sensors and additional functionality supporting the main function. The performance testing of an intelligent valve positioner is conducted with the positioner mounted on and connected to the actuator/valve assembly the positioner is used on. The specific characteristic parameters of the actuator/valve combination such as size, stroke, friction, type of packing, spring package and supply pressure for the pneumatic part has significant impact on the performance of a positioner. The methods of evaluation given in this document are intended for testing laboratories to verify equipment performance specifications. The manufacturers of intelligent positioners are urged to apply this document at an early stage of development.
This document is intended to provide guidance for designing evaluations of intelligent valve positioners by providing:
- a checklist for reviewing their hardware and software design in a structured way;
- test methods for measuring and qualifying their performance under various environmental and operational conditions;
- methods for reporting the data obtained.
When a full evaluation, in accordance with this document, is not required or possible, the tests which are required are performed and the results reported in accordance with the relevant clauses of this document. In such cases, the test report will state that it does not cover the full number of tests specified herein. Furthermore, the items omitted are mentioned, to give the reader of the report a clear overview. This document is also applicable for non-intelligent microprocessor-based valve positioners without means for bi-directional communication. In that case an evaluation will be reduced to a limited programme of performance testing and a review of the construction. This third edition cancels and replaces the second edition published in 2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) in 5.5.2, the standard for the measurements of influence quantities has been changed to IEC 62828-1:2026;
b) all references to IEC 61514 have been updated to IEC 61514:2026;
c) the aspect of cyber-security has been added in 4.2.7 and 4.2.9.
This document is to be used in conjunction with IEC 61514:2026.
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- Standard83 pagesEnglish languagesale 15% off
- Standard43 pagesFrench languagesale 15% off
This document applies to industrial metallic valves for hydrogen use. It contains recommendations and additional requirements applicable to material selection, design, manufacture, and final assessment.
This document addresses the following four services/damage mechanisms, which might exist in combinations:
— low temperature applications;
— hydrogen environmental embrittlement (HEE) or hydrogen-induced cracking (HIC);
— high temperature hydrogen attack (HTHA);
— hydrogen service with cyclic loads (fatigue).
This document considers the difference between gaseous hydrogen (GH2) and liquid hydrogen (LH2), where necessary.
The additional provisions set out in this document do not cover corrosion such as electro-chemical corrosion of metals under participation of hydrogen (e.g. sour gas).
This document is based on the requirements contained in the standards specified below:
— applications with a maximum allowable pressure PS greater than 0,5 bar in accordance with the European legislation for pressure equipment, the applicable provisions of EN 16668 apply;
— additional requirements for valves in chemical and petrochemical applications are specified in EN 12569;
— additional requirements for valves in gas distribution systems are specified in EN 13774;
— additional requirements for valves in gas transportation systems are specified in EN 14141.
- Standard65 pagesEnglish languagee-Library read for1 day
IEC TS 63086-2-5:2026 specifies test methods for measuring the performance change of electrically powered household and similar air cleaners caused by the loading with particles.
The main intention of the document is to compare differences in the performance change between air cleaners exposed to the same loading with particles. The performance change is not necessarily representative for real-use applications since concentration, size, morphology and chemical composition of particles present in household or similar environments can strongly differ.
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This document describes detailed methods for evaluating cycle life extension by partial pressure cycles with necessary conditions and example data of their application. Two methods for evaluating cycle life extension by partial pressure cycles based on the Goodman diagram and exponential formula are presented in ISO 19884-1. These methods do not rely on fracture mechanical methodology but on pressurizing cycle test data, since the framework of ISO 19884-1 is constructed on performance demonstrated by pressurizing cycle test data in hydrogen.
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This document specifies requirements and test methods for pipes and fittings which are part of piping systems for the rehabilitation, by means of renovation and trenchless replacement, of underground gas supply networks.
It is applicable to polyethylene (PE) pipes, fittings and assemblies, as manufactured and as installed. It is not applicable to the existing pipeline.
This document is applicable to the following technique families for renovation, intended to be used at an operating temperature of 20 °C as a reference temperature:
lining with continuous pipes;
lining with close-fit pipes.
This document is applicable to the following technique families for trenchless replacement, intended to be used at an operating temperature of 20 °C as a reference temperature:
pipe bursting and pipe extraction;
horizontal directional drilling and impact moling.
This document is applicable to:
PE solid wall single layered pipes (nominal outside diameter, dn), including any identification stripes;
PE pipes with co-extruded layers on either or both the outside and inside of the pipe (total outside diameter, dn), as specified in Annex D, where all layers have the same minimum required strength (MRS) rating.
Furthermore, when used with lining with continuous pipes and trenchless replacement, this document is applicable to:
PE coated pipes (outside diameter, dn) having a peelable, contiguous, thermoplastics additional layer on the outside of the pipe (“coated pipe”), as specified in Annex D.
NOTE When used with lining with close-fit lining pipes, the lining pipe is reduced in the factory or on site to provide a close-fitting independent or interactive pressure pipe liner.
This document is applicable to jointing by means of butt fusion and electrofusion and to fabricated and injection-moulded fittings and mechanical connections of PE.
This document is not applicable to push-fit jointed discrete pipes assembled as part of the trenchless installation process.
- Standard50 pagesEnglish languagee-Library read for1 day
This document specifies a method for the determination of the selected metals and semi-metals migration from the internal surface of plastics pipes, fittings and joints to be used for the transport of water intended for human consumption by inductively coupled plasma mass spectrometry (ICP-MS). This document is used to determine the selected metal and semi-metals migration values of lead (Pb), tin (Sn), antimony (Sb), cadmium (Cd), chromium (Cr), copper (Cu), barium (Ba), magnesium (Mg), aluminium (Al), nickel (Ni), zinc (Zn) and arsenic (As). This method is suitable for all plastics pipes, fittings and joints to be used for the transport of water and raw water intended for human consumption.
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This document specifies a method for the determination and reporting of measurement uncertainties arising during vacuum gauge calibration by direct comparison with a reference gauge carried out in accordance with ISO 3567. This document specifies methods for uniform reporting of uncertainties in vacuum gauge certificates. Uncertainties reported in accordance with the guidelines given in this document are transferable in the sense that the uncertainty evaluated for one result can be used as a component in the uncertainty evaluation of another measurement or calibration in which the first result is used. This document specifies two measurement models that are sufficient to cover most practical cases. However, it is possible that the models given cannot be applied to newly developed vacuum gauges. The final uncertainty to be reported in a certificate is evaluated from the uncertainties of the input quantities and influence quantities. The principal quantities that can affect the result of a vacuum calibration are described; however, a complete list of the possible quantities that can have an influence on the final result lies outside the scope of this document.
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This document is applicable to compressors, partially completed compressor units and compressor units having an operating pressure greater than 50 kPa and designed to compress air, nitrogen or inert gases. This document deals with all significant hazards, hazardous situations and events relevant to the design, installation, operation, maintenance, dismantling and disposal of compressors and compressor units when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). This document includes under the general term compressor units those machines which comprise the compressor, a drive system, and any component or device which is necessary for operation. This document covers compressors driven by any power media, including battery powered and which are fitted in or used with motor vehicles. The significant hazards dealt with in this document are identified in Annex A. This document does not cover requirements for compressors and compressor units used in potentially explosive atmospheres. This document is not applicable to compressors and compressor units which are manufactured before the date of publication of this document. This document does not cover compressors and compressor units for processing petroleum, petrochemicals, or chemicals within the scope of ISO/TC 67. This document does not give performance levels or safety integrity levels for safety related parts of control systems.
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This document specifies the definitions and requirements for buried circular manholes and inspection chambers installed to a maximum depth of 6 m from ground level to the invert of the main channel and manufactured from unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP), polypropylene with mineral modifiers (PP-MD) or polyethylene (PE). These products are intended for use in traffic areas and outside the building structure (application area code “U”) for wastewater (foul wastewater, domestic wastewater, surface water). NOTE 1 Products conforming with this document are also suitable in non-traffic areas. This document is only applicable to those chamber/manhole items where the manufacturer has clearly stated in the documentation how the components must be assembled to create a complete manhole or inspection chamber. The products covered by this document comprise the following: products providing access to the drain or sewer systems by means of inspection and cleaning equipment. products designated as manholes providing additionally human access to the drain or sewer systems. NOTE 2 Manholes and inspection chambers can be subject to national regulations and/or local provisions. NOTE 3 Products conforming with this document can be installed in underground applications without additional static calculations.
- Standard23 pagesEnglish languagesale 15% off
This document specifies requirements and test methods for pipes and fittings which are part of piping systems for the rehabilitation, by means of renovation and trenchless replacement, of underground gas supply networks. It is applicable to polyethylene (PE) pipes, fittings and assemblies, as manufactured and as installed. It is not applicable to the existing pipeline. This document is applicable to the following technique families for renovation, intended to be used at an operating temperature of 20 °C as a reference temperature: lining with continuous pipes; lining with close-fit pipes. This document is applicable to the following technique families for trenchless replacement, intended to be used at an operating temperature of 20 °C as a reference temperature: pipe bursting and pipe extraction; horizontal directional drilling and impact moling. This document is applicable to: PE solid wall single layered pipes (nominal outside diameter, dn), including any identification stripes; PE pipes with co-extruded layers on either or both the outside and inside of the pipe (total outside diameter, dn), as specified in Annex D, where all layers have the same minimum required strength (MRS) rating. Furthermore, when used with lining with continuous pipes and trenchless replacement, this document is applicable to: PE coated pipes (outside diameter, dn) having a peelable, contiguous, thermoplastics additional layer on the outside of the pipe (“coated pipe”), as specified in Annex D. NOTE When used with lining with close-fit lining pipes, the lining pipe is reduced in the factory or on site to provide a close-fitting independent or interactive pressure pipe liner. This document is applicable to jointing by means of butt fusion and electrofusion and to fabricated and injection-moulded fittings and mechanical connections of PE. This document is not applicable to push-fit jointed discrete pipes assembled as part of the trenchless installation process.
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This document specifies an analysing methodology for protecting potable water in potable water installations within and outside buildings but within premises from the risk of pollution by backflow of non-potable water and gives recommendations on the design, risk analysis, backflow prevention devices and their installation methods (see Figure 1 and Figure 2).
This methodology is also intended to be used outside premises for all water systems connected to a potable water distribution system up to and including the point of use (see Figure 3).
The product standards for the specific backflow prevention devices or arrangements are intended to be used in conjunction with this document. For the development of new devices or systems, this document is intended to be used as a reference to establish the necessary level of backflow protection.
- Standard67 pagesEnglish languagee-Library read for1 day
This document provides an overview of the standardization deliverables published and under development under the responsibility of CEN/TC 107. It defines the temperature ranges applicable to the intended use of these documents and establishes a classification system linking each document to its corresponding temperature range. Furthermore, it describes how estimation of service life of pipe systems is conducted based on the average operating temperature within service pipes, taking into account additional influencing conditions.
- Technical report13 pagesEnglish languagee-Library read for1 day
This document specifies requirements for unfired pressure vessels and their parts made of aluminium and aluminium alloys in addition to the general requirements for unfired pressure vessels under EN 13445:2026 Parts 1 to 5. This document specifies unfired pressure vessels for loads up to 500 full cycles.
NOTE Cast materials are not included in this version. Details regarding cast materials will be subject to an amendment to or a revision of this document.
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This document defines the terms, definitions, quantities, symbols and units that are used throughout the EN 13445 series and gives general information on the design and manufacturing of vessels under this standard.
It also contains instructions on how to use the standard (Annex A) as well as an index which covers the whole standard (Annex B). This information is aimed to aid users of the EN 13445 series.
This document applies to unfired pressure vessels with a maximum allowable pressure greater than 0,5 bar gauge but may be used for vessels operating at lower pressures, including vacuum.
This document is not applicable to pressure vessels of the following types:
- vessels of riveted construction;
- vessels of lamellar cast iron or any other materials not included in Parts 2, 6, or 8 of the standard;
- multilayered, autofrettaged or pre-stressed vessels.
This document can be applied to the following pressure vessels, provided that account is taken of additional and/or alternative requirements resulting from the hazard analysis and from rules or instructions specific for:
- transportable vessels;
- items specifically designed for nuclear use;
- pressure vessels with a risk of overheating.
NOTE EN 14222 covers electrically fired boilers made from stainless steel and can be used as an example of additional requirements for such vessels.
Other European standards apply to industrial piping (EN 13480 series) and to water tube and shell boilers (EN 12952 series and EN 12953 series).
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This Part of this document specifies requirements for the design of unfired pressure vessels covered by EN 13445-1: 2026 and constructed of steels in accordance with EN 13445-2:2026.
EN 13445-5: 2026, Annex C specifies requirements for the design of access and inspection openings, closing mechanisms and special locking elements.
This Part applies to design of vessels before putting into service. It may be used for in service calculation or analysis subject to appropriate adjustment.
- Standard917 pagesEnglish languagee-Library read for1 day
This document specifies an analysing methodology for protecting potable water in potable water installations within and outside buildings but within premises from the risk of pollution by backflow of non-potable water and gives recommendations on the design, risk analysis, backflow prevention devices and their installation methods (see Figure 1 and Figure 2).
This methodology is also intended to be used outside premises for all water systems connected to a potable water distribution system up to and including the point of use (see Figure 3).
The product standards for the specific backflow prevention devices or arrangements are intended to be used in conjunction with this document. For the development of new devices or systems, this document is intended to be used as a reference to establish the necessary level of backflow protection.
- Standard67 pagesEnglish languagee-Library read for1 day
This document specifies requirements for unfired pressure vessels and their parts made of titanium and titanium alloys in addition to the general requirements for unfired pressure vessels under EN 13445-1:2026 to EN 13445-5:2026.
NOTE 1 Cast materials, HIP and additive manufacturing are not included in this version. Details regarding such materials will be subject to an amendment to or a revision of this European Standard.
NOTE 2 Materials in Groups 51.4 and 54 are not included in this version.
- Standard35 pagesEnglish languagee-Library read for1 day
This document specifies requirements for the manufacture of unfired pressure vessels and their parts, made of steels, including their connections to non-pressure parts. It specifies requirements for material traceability, manufacturing tolerances, welding requirements, requirements for permanent joints other than welding, production tests, forming requirements, heat treatment, repairs and finishing operations.
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This Part of this document specifies the inspection and testing of individual and serially produced pressure vessels made of steels in accordance with EN 13445-2:2021.
Special provisions for cyclic operation are given in Annex G of this Part.
Special provisions for vessels or vessel parts working in the creep range are given in Annex F and Annex I of this Part.
NOTE The responsibilities of parties involved in the conformity assessment procedures are given in Directive 2014/68/EU. Guidance on this can be found in CR 13445-7.
- Standard83 pagesEnglish languagee-Library read for1 day
This document provides an overview of the standardization deliverables published and under development under the responsibility of CEN/TC 107. It defines the temperature ranges applicable to the intended use of these documents and establishes a classification system linking each document to its corresponding temperature range. Furthermore, it describes how estimation of service life of pipe systems is conducted based on the average operating temperature within service pipes, taking into account additional influencing conditions.
- Technical report13 pagesEnglish languagee-Library read for1 day
This document specifies requirements for the design, materials, manufacturing and testing of pressure vessels and pressure vessel parts intended for use with a maximum allowable pressure, PS, equal or less than:
- 100 bar when containing gases or liquids in group 1 or 2;
- 1 000 bar when containing liquids in group 2 only
and shell wall thicknesses not exceeding 60 mm, which are constructed of ferritic or austenitic spheroidal graphite cast iron. The thickness limitation of the shell does not apply to thickness of flanges, reinforcements, bosses, etc.
NOTE 1 Austenitic spheroidal graphite cast iron grades are principally used for high and low temperature applications and for their corrosion resistance properties.
NOTE 2 The allowable grades of spheroidal graphite cast iron are listed in Tables 5.1-1 and 5.1-2. Service conditions are given in Clause 4.
This document does not include lamellar graphite cast iron grades for ferritic and austenitic grades, with an elongation after fracture equal or less than 15 % which are explicitly excluded. Requirements for the use of cast irons with an elongation after fracture equal or less than 15 % are given in EN 15776.
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This document specifies the requirements for steel products used for unfired pressure vessels.
For some metallic materials other than steel, such as spheroidal graphite cast iron, aluminium, nickel, copper, titanium, requirements are or will be formulated in separate parts of this document.
For metallic materials which are not covered by a harmonized material standard and are not likely to be in near future, specific rules are given in this part or the above cited parts of this document.
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This Part 10 of this document specifies requirements for unfired pressure vessels and their parts made of nickel and nickel alloys (see 3.1) in addition to the general requirements for unfired pressure vessels under EN 13445-1:2026, EN 13445-2:2026, EN 13445-3:2026, EN 13445-4:2026 and EN 13445-5:2026.
NOTE Cast materials are not included in this version. Details regarding cast materials will be subject to an amendment to or a revision of this document.
- Standard29 pagesEnglish languagee-Library read for1 day