SIST EN ISO 308:2000
(Main)Plastics - Phenolic moulding materials - Determination of acetone-soluble matter (apparent resin content of material in the unmoulded state) (ISO 308:1994)
Plastics - Phenolic moulding materials - Determination of acetone-soluble matter (apparent resin content of material in the unmoulded state) (ISO 308:1994)
Specification of a gravimetric method for the determination of the amount of matter that can be extracted by boiling acetone from a sample of finely divided phenolic moulding material. The extract is dried under controlled conditions and the mass of residue determined by weighing. The amount of acetone soluble matter (apparent resin content) is expressed as percentage by mass of the original test portion.
Kunststoffe - Phenolharz-Formmassen - Bestimmung des acetonlöslichen Anteils (Scheinbarer Harzgehalt von Formmassen in unverarbeitetem Zustand) (ISO 308:1994)
Diese Internationale Norm beschreibt ein gravimetrisches Verfahren zur Bestimmung des Anteils von Bestandteilen, die sich aus feinteiligen Phenolharz- Formmassen-Proben durch Aceton mit einer Temperatur nahe dem Siedepunkt extrahieren lassen. Das Verfahren kann nur auf Formmassen auf Novolakbasis angewandt werden, nicht jedoch auf Resolharz-Formmassen, da dieser Harztyp möglicherweise nicht vollständig acetonlöslich ist.
Plastiques - Matieres a mouler a base de phénoplastes - Détermination des matieres solubles dans l'acétone (teneur apparente en résine des matieres a l'état non moulé) (ISO 308:1994)
Polimerni materiali - Materiali za oblikovanje na osnovi fenolnih smol - Določevanje topnega v acetonu (navidezni delež smole v neoblikovanem stanju) (ISO 308:1994)
General Information
- Status
- Published
- Publication Date
- 30-Apr-2000
- Technical Committee
- IPMA - Polimer materials and products
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-May-2000
- Due Date
- 01-May-2000
- Completion Date
- 01-May-2000
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
SIST EN ISO 308:2000 specifies a gravimetric method for determining the acetone-soluble matter in phenolic moulding materials. This test measures the apparent resin content of unmoulded phenolic plastics, which is an essential quality parameter for manufacturers and users of thermosetting materials. The method involves extracting a finely divided sample with boiling acetone, drying the extract, and determining the residue's mass. The percentage of acetone-soluble matter, primarily phenolic resin content, is then calculated relative to the original sample mass.
This standard is published by CEN and is identical to ISO 308:1994, ensuring harmonized requirements and test methods across international and European markets for the plastics industry.
Key Topics
- Scope of Application: Focus on phenolic moulding materials, especially those based on novolak resins. Materials based on resol resins may not be fully assessed due to their different solubility in acetone.
- Test Methodology: Utilizes a gravimetric extraction technique with acetone as the solvent. The process is performed with controlled temperature and drying conditions to ensure reproducibility.
- Reporting Requirements: Specifies how results are expressed as a percentage by mass and outlines the necessity for duplicate testing and reporting of the arithmetic mean, ensuring accuracy and transparency.
- Quality Assurance: Enforces reference to recognized definitions (ISO 472, ISO 800) and mandates precise documentation, supporting consistent quality across the plastics supply chain.
Applications
SIST EN ISO 308:2000 is widely used in the plastics and thermosetting materials industries to:
- Quality Control: Manufacturers use this standard to verify the resin content in phenolic moulding materials before moulding, ensuring product consistency and performance.
- Material Specification: Purchasers and suppliers reference this standard when specifying or certifying phenolic resins in procurement and supply contracts.
- Research and Development: Laboratories and R&D teams apply this test to evaluate new formulations, optimize performance characteristics, and ensure compliance with regulatory or customer requirements.
- Compliance Verification: Organizations seeking conformity with international quality standards or preparing for certification audits use the SIST EN ISO 308:2000 procedure to demonstrate robust material verification processes.
The reliable determination of acetone-soluble matter is vital for applications in automotive, electrical, and industrial sectors where phenolic resins are valued for their heat resistance and electrical insulation properties.
Related Standards
- ISO 472 - Plastics Vocabulary: Defines key terms and definitions related to plastics, including phenolic resins and moulding materials.
- ISO 800 - Phenolic moulding materials - Specification: Specifies requirements for phenolic moulding materials, complementing the test methods in EN ISO 308.
- ICS 83.080.10 - Thermosetting Materials: Classification covering international standards for thermosetting plastics and their testing.
- Other National and Regional Equivalents: This standard aligns with related documents adopted by national bodies, such as SIST EN ISO 308:2000.
Adoption of SIST EN ISO 308:2000 supports standardization, enhances product reliability, and facilitates international trade in the field of thermosetting plastics, especially phenolic materials. For manufacturers, laboratories, and quality assurance teams, adherence to this standard ensures accurate, repeatable, and comparable results in resin content testing. By following this gravimetric method, stakeholders can confidently assess, specify, and supply phenolic moulding materials that meet stringent performance and regulatory demands.
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Frequently Asked Questions
SIST EN ISO 308:2000 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Plastics - Phenolic moulding materials - Determination of acetone-soluble matter (apparent resin content of material in the unmoulded state) (ISO 308:1994)". This standard covers: Specification of a gravimetric method for the determination of the amount of matter that can be extracted by boiling acetone from a sample of finely divided phenolic moulding material. The extract is dried under controlled conditions and the mass of residue determined by weighing. The amount of acetone soluble matter (apparent resin content) is expressed as percentage by mass of the original test portion.
Specification of a gravimetric method for the determination of the amount of matter that can be extracted by boiling acetone from a sample of finely divided phenolic moulding material. The extract is dried under controlled conditions and the mass of residue determined by weighing. The amount of acetone soluble matter (apparent resin content) is expressed as percentage by mass of the original test portion.
SIST EN ISO 308:2000 is classified under the following ICS (International Classification for Standards) categories: 83.080.10 - Thermosetting materials. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 308:2000 has the following relationships with other standards: It is inter standard links to SIST EN 434:1999, SIST EN 861:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN ISO 308:2000 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2000
3ROLPHUQLPDWHULDOL0DWHULDOL]DREOLNRYDQMHQDRVQRYLIHQROQLKVPRO
'RORþHYDQMHWRSQHJDYDFHWRQX QDYLGH]QLGHOHåVPROHYQHREOLNRYDQHPVWDQMX
,62
Plastics - Phenolic moulding materials - Determination of acetone-soluble matter
(apparent resin content of material in the unmoulded state) (ISO 308:1994)
Kunststoffe - Phenolharz-Formmassen - Bestimmung des acetonlöslichen Anteils
(Scheinbarer Harzgehalt von Formmassen in unverarbeitetem Zustand) (ISO 308:1994)
Plastiques - Matieres a mouler a base de phénoplastes - Détermination des matieres
solubles dans l'acétone (teneur apparente en résine des matieres a l'état non moulé)
(ISO 308:1994)
Ta slovenski standard je istoveten z: EN ISO 308:1997
ICS:
83.080.10 Duromeri Thermosetting materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
INTERNATIONAL ISO
STANDARD 308
Third edition
1994-10-01
Plastics - Phenolic moulding materials -
Determination of acetone-soluble matter
(apparent resin ’content of material in the
unmoulded state)
Plas tiques - Mati&res 2 mouler 2 base de phknoplastes -
Determination des ma tieres solubles dans I ’ac&one (teneur apparen te en
rksine des matieres A Etat non mouk)
Reference number
ISO 3087 994(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide
federation of national Standards bodies (ISO member bodies). The work
of preparing International Standards is normally carried out through ISO
technical committees. Esch member body interested in a subject for
which a technical committee has been established has the right to be
represented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 308 was prepared by Technical Committee
lSO/TC 61, Plastics, Subcommittee SC 12, Thermosetting materials.
This third edition cancels and replaces the second edition
(ISO 308:1981), of which it constitutes a minor revision.
0 ISO 1994
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopying and
microfilm, without Permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-l 211 Geneve 20 l Switzerland
Printed in Switzerland
INTERNATIONAL STANDARD 0 ISO ISO 308:1994(E)
Plastics - Phenolic moulding materials -
Determination of acetone-soluble matter (apparent
resin content of material in the unmoulded state)
1 Scope 3 Definitions
For the purposes of this International Standard, the
This International Standard specifies a gravimetric
definitions of moulding materials based on phenolic
method for the determination of the amount of matter
resins, novolak resins and resol resins given in
that tan be extracted by acetone, at a temperature
ISO 472 and ISO 800 apply.
near its boiling Point, from a Sample of finely divided
phenolic moulding material. The method applies only
to moulding materials based upon novolak resins and
4 Principle
not to those based upon resols, as the latter type of
resin may not be completely soluble in acetone.
The acetone-soluble matter is extracted, using hot
acetone, from a finely divided test Portion. The extract
In this International Standard, the amount of acetone-
is dried under controlled conditions and weighed.
soluble matter is reported as the apparent resin con-
tent because, although the extract consists mainly of
5 Reagent
phenolic resin and hexamine, other acetone-soluble
components such as Iubricants and colorants or na-
tural resins from the filler are normally also present 5.1 Acetone, pure.
and will therefore be reported as resin.
6 Apparatus
6.1 Reduction device, for reducing coarse materials
to a finer state of division.
2 Normative references
6.2 Balance, accurate to 1 mg.
The following Standards contain provisions which,
through reference in this text, constitute provisions
6.3 Extraction apparatus, of the t
...
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