GB/T 7380-1995
Surface active agents and detergents--Determination of water content--Karl Fischer method (English Version)

Standard No.

GB/T 7380-1995

Language

Chinese, Available in English version

Release Date

1995

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2008-02

Replace By

GB/T 11275-2007

Latest

GB/T 11275-2007

Scope

This standard specifies the method for the determination of water content in surfactants and detergents using Karl Fischer reagent. This standard applies to powder, paste and solution products. For samples with a water content below 1% (m/m), this method is the only method used. If the sample contains alkali metal silicates, carbonates, hydroxides and borates, the basic compounds react with the Karl Fischer reagent to obtain high measured values. The alkali metal salts in the sample should be analyzed before the determination.

GB/T 7380-1995 history

• 2007 GB/T 11275-2007 Surface active agents.Determination of water content
• 1995 GB/T 7380-1995 Surface active agents and detergents--Determination of water content--Karl Fischer method

GB/T 7380-1995 Surface active agents and detergents--Determination of water content--Karl Fischer method was changed to GB/T 11275-2007 Surface active agents.Determination of water content.