QB/T 2623.1-2003
Test methods of soaps Determination of free caustic alkali content in soaps (English Version)

Standard No.

QB/T 2623.1-2003

Language

Chinese, Available in English version

Release Date

2003

Published By

Professional Standard - Light Industry

Status

Be replaced 2020-10

Replace By

QB/T 2623.1-2020

Latest

QB/T 2623.1-2020

Scope

This standard specifies a method for the determination of free caustic alkali content in soap using the absolute ethanol method. This standard applies to ordinary sodium fatty acid soaps (calculated as NaOH), but does not apply to potassium soaps or composite soaps. Generally, free caustic alkali refers to sodium hydroxide (NaOH) for sodium soap; and potassium hydroxide (KOH) for potassium soap.

QB/T 2623.1-2003 history

• 2020 QB/T 2623.1-2020 Soap test methods Determination of free caustic alkali content in soap
• 2003 QB/T 2623.1-2003 Test methods of soaps Determination of free caustic alkali content in soaps