BS 7164-24:1996
Current
The latest, up-to-date edition.
Chemical tests for raw and vulcanized rubber Determination of free sulfur
Hardcopy , PDF
English
10-12-2002
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Committees responsible
National foreword
Introduction
Method
1 Scope
2 Normative references
3 Principle
4 Limitations
5 Copper spiral method A
6 Copper spiral method B
7 Sulfite method
8 Test report
Annex
A (normative) Determination of free-sulfur content-
Effect of various commercial accelerators on the
copper spiral and sulfite methods of analysis
Figures
1 Typical apparatus for extraction of free sulfur
by copper spiral method A
2 Typical apparatus for determination of free sulfur
by copper spiral method A
3 Typical apparatus for determination of free sulfur
by copper spiral method B
Specifies three methods for the determination of free sulfur in vulcanized rubber: two versions of the copper spiral method, and the sodium sulfite method.
| Committee |
PRI/22
|
| DevelopmentNote |
Supersedes BS 7164-24(1990). Also numbered as ISO 7269. (12/2002) Reviewed and confirmed by BSI, September 2010. (08/2010)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
1.1 This International Standard specifies three methods for the determination of free sulfur in vulcanized rubber: two versions of the copper spiral method, and the sodium sulfite method.
1.2 The copper spiral methods are also applicable, subject to the limitations described in clause 4, to unvulcanized compounds.
1.3 Annex A gives a table listing the sulfur contribution, as a percentage by mass, to these free-sulfur methods for various commercial accelerators.
| ISO 383:1976 | Laboratory glassware — Interchangeable conical ground joints |
| ISO 1407:2011 | Rubber — Determination of solvent extract |
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