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Surface active agents - Sulfated ethoxylated alcohols and alkylphenols - Determination of content of unsulfated matter (ISO 8799:2009); German version EN ISO 8799:2009

Standard [CURRENT]

DIN EN ISO 8799:2010-04

Surface active agents - Sulfated ethoxylated alcohols and alkylphenols - Determination of content of unsulfated matter (ISO 8799:2009); German version EN ISO 8799:2009

German title
Grenzflächenaktive Stoffe - Sulfatierte ethoxylierte Alkohole und Alkylphenole - Bestimmung der unsulfatierten Anteile (ISO 8799:2009); Deutsche Fassung EN ISO 8799:2009
Publication date
2010-04
Original language
German
Pages
11

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Publication date
2010-04
Original language
German
Pages
11
DOI
https://dx.doi.org/10.31030/1481162

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Overview

This standard specifies a method for the determination of the content of unsulfated matter present in ordinary commercial neutralized products of sulfation of ethoxylated alcohols or alkylphenols [alkyl oxyethylene sulfates (ethoxylated alcohol sulfates) or alkylphenol oxyethylene sulfates (ethoxylated alkyphenol sulfates)] containing an average of not more than 20 oxyethylene groups per molecule. From a methanolic solution of the test portion, the unsulfated matter is separated on an ion-exchange column and recovered from the eluate by evaporation and weighing of the residue. The Standard has been prepared by Technical Committee CEN/TC 276 "Surface active agents", the secretariat of which is held by AFNOR (France), in collaboration with Technical Committee ISO/TC 91 "Surface active agents". The responsible German Committee is Working Committee NA 062-05-62 AA "Analytik von Tensiden" ("Analytics of surfactants").

Content

ICS

71.100.40

DOI

https://dx.doi.org/10.31030/1481162
Replacement amendments

This document replaces DIN EN ISO 8799:1995-09 .

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