Standard No.:	QB/T 2623.4-2003
Chinese Name:	肥皂试验方法 肥皂中水分和挥发物含量的测定 烘箱法
English Name:	Test methods of soaps Determination of moisture and volatile matter content in soaps -- Oven method
Professional Classification:	Y43
Professional Classification:	QB Professional Standard - Light Industry
ICS Classification:	71.100
Issued by:
Issued on:	2003-12-11
Implemented on:	2004-05-01
Status:	VALID
Replace:	QB/T3751-1999
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	60 (USD)
Delivery:	via email in 1-3 business day

1 Scope

This Standard specifies an oven method for the determination of the moisture and volatile matter content in soaps.
This Standard is applicable to determination of moisture and other matters of soaps lost under (103±2)℃ heating conditions, but not applicable to compounded soap.

2 Normative References

The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. For dated references, subsequent amendments (excluding corrigendum) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this Standard are encouraged to study whether the latest editions of these documents apply. For undated references, the latest editions of the normative documents referred to apply.
QB/T 2623.1-2003 Test Methods of Soaps - Determination of Free Caustic Alkali Content in Soaps

3 Test Method

3.1 Principle
Under specified temperature, oven-drying of a given mass of sample to constant mass and weighing the reduced mass.
3.2 Apparatus
Ordinary laboratory apparatus and