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sklademVydáno: 1993-01-15
BS 7164-23.1:1993
Chemical tests for raw and vulcanized rubber. Methods for determination of total sulfur content Oxygen combustion flask method
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| Označení normy: | BS 7164-23.1:1993 |
| Počet stran: | 14 |
| Vydáno: | 1993-01-15 |
| ISBN: | 0 580 21512 1 |
| Status: | Standard |
Popis
BS 7164-23.1:1993
This standard BS 7164-23.1:1993 Chemical tests for raw and vulcanized rubber. Methods for determination of total sulfur content is classified in these ICS categories:
- 83.060 Rubber
This part of ISO 6528 specifies an oxygen combustion flask method for the determination of the total sulfur content of rubber.
The method is applicable for the determination of all the sulfur present in a rubber or rubber product, except that contained in barium sulfate.
It is applicable to NR, CR, SBR, BR, IR, IIR, EPDM, NBR and ebonite. (The meanings of these designations are given in ISO 1629:1987, Rubber and latices – Nomenclature.)
This method gives unreliable (usually low) results in the presence of lead, antimony, zinc, barium and calcium compounds. If calcium carbonate is the only calcium compound present, good results can be obtained by modifying the absorbing solution.