Norm

NEN-ISO 7781:2008 en

Ruwe styreen-butadieenrubber - Bepaling van het gehalte aan zeep en organisch zuur

52,53

Over deze norm

Status Definitief
Aantal pagina's 7
Commissie Rubber
Gepubliceerd op 01-04-2008
Taal Engels
This International Standard specifies 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 autotitrator or pH-meter. The methods depend on the extraction of the organic acids and soaps from the rubber by means of a specified solvent. In practice, therefore, it is convenient to determine both organic-acid and soap contents on separate portions of the same solvent extract. 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.

Details

ICS-code 83.040.10
Nederlandse titel Ruwe styreen-butadieenrubber - Bepaling van het gehalte aan zeep en organisch zuur
Engelse titel Styrene-butadiene rubber, raw - Determination of soap and organic-acid content
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