Standard ČSN 681157 1.11.1994 preview

ČSN 681157 (681157)

Testing methods for surfactans and detergents. Determination of chelating agent content



STANDARD published on 1.11.1994


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The information about the standard:

Designation standards: ČSN 681157
Classification mark: 681157
Catalog number: 16932
Publication date standards: 1.11.1994
SKU: NS-133312
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

The category - similar standards:

Surface active agents

Annotation of standard text ČSN 681157 (681157):

Předmětem normy je popis dvou metod, a to: Metoda A je určena pro stanovení obsahu ethylendiamintetraoctové kyseliny (EDTA) a jejích solí v mýdlech a detergentech, které neobsahují více než 2 % chelatačního činidla. Metoda B je určena pro stanovení obsahu nitrilotrioctanu trojsodného (NTA) v detergentech. Postup při provádění normalizovaných zkoušek je podrobně popsán. ČSN 68 1157 byla vydána v listopadu 1994. Nahradila čl. 47 ČSN 68 1101 z 9.10.1974

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