Aktivní norma | Vydána: 01.12.1973

ISO 2868:1973

Surface active agents — Detergents — Anionic-active matter stable to acid hydrolysis — Determination of trace amounts
(Agents de surface — Détergents — Matiere active anionique stable a l´hydrolyse acide — Détermination de faibles teneur)

Dostupné jazyky: Anglicky, Francouzsky

Dostupné provedení: Elektronické PDF, Tištěné

od 56.50 EUR zobrazit na eshopu

Podrobné informace

Označení: ISO 2868:1973

Datum vydání: 01.12.1973

Stran: 2

Země: Mezinárodní technická norma

Kde koupit?

Můžete zakoupit na eshop.normservis.cz

Anotace

Description / Abstract: The sample is hydrolyzed by refluxing under acid conditions. The non-hydrolyzable anionic-active matter is determined by the direct two-phase titration procedure describes in ISO 2271. This method is applicable to the determination of cyclic sulphonates in alkylphenol ether sulphates and of small amounts of sulphonates in sulphated fatty alcohols. The molar mass of the anionic matter must be known or previously determined, if its content is expressed as percentage by mass.

Populární vydavatelé

celý katalog