BS ISO 9924-3:2009
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Rubber and rubber products. Determination of the composition of vulcanizates and uncured compounds by thermogravimetry Hydrocarbon rubbers, halogenated rubbers and polysiloxane rubbers after extraction
Hardcopy , PDF
05-03-2024
English
31-10-2009
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Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Preparation of samples
7 Procedure
8 Expression of results
9 Test report
10 Precision
Annex A (informative) - Recommended procedures
Annex B (informative) - Examples of thermogram
Annex C (informative) - Precision
Bibliography
Describes a thermogravimetric method for the determination of the main constituents of rubber compounds such as elastomer(s), carbon black and mineral filler.
| Committee |
PRI/22
|
| DevelopmentNote |
Supersedes 07/30161736 DC. (10/2009) Reviewed and confirmed by BSI, August 2014. (07/2014)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This part of ISO9924 specifies a thermogravimetric method for the determination of the main constituents of rubber compounds such as elastomer(s), carbon black and mineral filler.
It establishes the “fingerprint” of the tested material. However, the result does not always correspond exactly to the theoretical formula of the rubber.
This method applies to raw or compounded rubbers, vulcanized and unvulcanized, after preliminary extraction.
This method applies to rubbers with hydrocarbon backbones (NR, BR, SBR, IIR, EPDM, ACM, AEM, etc.) used alone or as mixtures. For the mixtures, the polymer content corresponds to the total rubber, and it is not usually possible to identify individual polymers.
This method applies to rubbers with halogenated hydrocarbon backbones (CR, CSM, FKM, CM, CO, ECO, etc.) or containing nitrogen (NBR, HNBR, NBR/PVC, etc.), as well as to their mixtures. However, these rubbers often form carbonaceous residues which interfere with the analysis. Application of an appropriate procedure minimizes these interferences.
This method also applies to rubbers with a polysiloxane backbone (VMQ, etc.) and to rubbers not listed above.
| Standards | Relationship |
| ISO 9924-3:2009 | Identical |
| ISO 23529:2016 | Rubber General procedures for preparing and conditioning test pieces for physical test methods |
| ISO 1407:2011 | Rubber — Determination of solvent extract |
| ISO/TR 9272:2005 | Rubber and rubber products Determination of precision for test method standards |
| ISO 1629:2013 | Rubber and latices — Nomenclature |
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