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NBN ISO 7781:2021
Styrene-butadiene rubber, raw — Determination of soap and organic-acid content
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Summary
This document specifies three methods for the determination of the soap and organic-acid content of
raw styrene-butadiene rubber (SBR).
— Method A is the titration method using indicator reagent.
— Method B is the titration method using an automatic potentiometric titrator.
— Method C is the back titration method using an automatic potentiometric titrator.
Since the soaps and organic acids present in the rubber are not single chemical compounds, the method
gives only an approximate value for the soap and organic-acid content.
raw styrene-butadiene rubber (SBR).
— Method A is the titration method using indicator reagent.
— Method B is the titration method using an automatic potentiometric titrator.
— Method C is the back titration method using an automatic potentiometric titrator.
Since the soaps and organic acids present in the rubber are not single chemical compounds, the method
gives only an approximate value for the soap and organic-acid content.
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 05/29/2021 |
| Page Count | 20 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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29/05/2021
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