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Standard ČSN 681156 1.11.1994 preview

ČSN 681156 (681156)

Testing methods for surfactans and detergents. Washing powder. Determination of active oxygen content. Titrimetric method



STANDARD published on 1.11.1994


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The information about the standard:

Designation standards: ČSN 681156
Classification mark: 681156
Catalog number: 16931
Publication date standards: 1.11.1994
SKU: NS-133311
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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The category - similar standards:

Surface active agents

Annotation of standard text ČSN 681156 (681156):

Tato norma určuje metodu stanovení aktivního kyslíku v pracích prášcích. Metodu lze použít pro stanovení peroxyhydrátů, např. perboritanu sodného; nelze ji použít pro prací prášky, které navíc obsahují látky reagující v kyselém prostředí s manganistanem. Metoda může být použita v přítomnosti ethylendiamintetraoctové kyseliny (EDTA) nebo jiných chelatačních činidel téhož typu, jestliže jejich koncentrace nepřekročí 1 % (m.m-1). Postup při provádění normalizované zkoušky je podrobně popsán. ČSN 68 1156 byla vydána v listopadu 1994

Similar standards:

ČSN 681141ČSN 681141

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ČSN 681142ČSN 681142

1.11.1994

ČSN 681143ČSN 681143

1.11.1994

ČSN 681144ČSN 681144

1.11.1994

ČSN 681145ČSN 681145

1.11.1994

ČSN 681146ČSN 681146

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