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ISO 4317:2011

Surface-active agents and detergents — Determination of water content — Karl Fischer methods
29 nën 2011

General information

90.93     30 gush 2022

ISO

ISO/TC 91

International Standard

71.100.40  

anglisht   frëngjisht  

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Scope

ISO 4317:2011 specifies two titration methods (volumetric and coulometric) using Karl Fischer reagent for the determination of the water content of surface active agents and detergents.
These methods are applicable to products in the form of powders, pastes and solutions.
They are applicable only if so indicated in the specific standard for each product.
As alkaline compounds react with Karl Fischer reagent, the methods give values which are too high in the case of samples containing alkali metal silicates, carbonates, hydroxides or borates. Therefore, samples need to be analysed for the presence of such alkali metal salts prior to the determination of the water content.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 4317:1991

NOW

PUBLISHED
ISO 4317:2011
90.93 Standard confirmed
30 gush 2022

National adoptions

SSH ISO 4317:2011  
DPS

Agjentët me aktivitet sipërfaqësor dhe detergjentët - Përcaktimi i përmbajtjes së ujit - Metodat e Karl Fischer

60.60 Standard published

DPS/KT 47 më tepër