GB/T 23948-2023: Inorganic chemicals for industrial use - General method for the determination of water insoluble matter

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Scope

This document describes the principles, reagents or materials, instruments and
equipment, test procedures and test data processing of the general method for the
determination of water-insoluble matter in inorganic chemical products.
This document is applicable to the determination of water-insoluble matter in inorganic
chemical products. The glass sand crucible method specified in this document is
applicable to the determination of water-insoluble matter in non-alkaline products. The
microporous membrane filter method (made of polytetrafluoroethylene) is applicable
to the determination of water-insoluble matter in products with a pH value of 2~13 in
aqueous solution. The Gooch crucible method is applicable to the determination of
water-insoluble matter in all products.

Basic Data

Standard ID	GB/T 23948-2023 (GB/T23948-2023)
Description (Translated English)	Inorganic chemicals for industrial use - General method for the determination of water insoluble matter
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G10
Classification of International Standard	71.060.01
Word Count Estimation	9,938
Date of Issue	2023-11-27
Date of Implementation	2024-06-01
Older Standard (superseded by this standard)	GB/T 23948-2009
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration