ISO 6235:2016
Current
The latest, up-to-date edition.
Rubber, raw Determination of block polystyrene content Ozonolysis method
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English, French
14-09-2016
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ISO 6235:2016 specifies a method for the determination of the long polystyrene block content of raw uncompounded styrene-butadiene rubber (SBR) and raw uncompounded blends of block SBR.
It is not applicable to blends of block SBR with EPDM, IIR, CSM and other halogenated rubbers.
The method is applicable to raw, uncompounded latices of the above compositions and is suitable for rubbers having block polystyrene contents in the range from 5 % (by weight) to 100 % (by weight).
Rubbers having block polystyrene contents of less than 5 % (by weight) may yield incorrect results unless a correction factor, based on information gained by working with such rubbers, is applied.
The method is intended for use on gel-free rubbers, but it may be used on rubbers containing gel if it has been proved that the gel does not interfere.
| DevelopmentNote |
Supersedes ISO/FDIS 6235. (09/2016)
|
| DocumentType |
Standard
|
| Pages |
5
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| UNI ISO 6235:2016 | Identical |
| UNI ISO 6235 : 2007 | Identical |
| BS ISO 6235:2016 | Identical |
| NEN ISO 6235 : 2016 | Identical |
| NF ISO 6235 : 2016 | Identical |
| UNI 9263 : 1988 | Similar to |
| BS 7164-12:1991 | Chemical tests for raw and vulcanized rubber Determination of bound styrene content of raw styrene-butadiene rubber; emulsion polymerized: refractive index method |
| ISO 4793:1980 | Laboratory sintered (fritted) filters — Porosity grading, classification and designation |
| ISO 1407:2011 | Rubber — Determination of solvent extract |
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