Standard No.:	GB/T 13025.4-2012
English Name:	General test method in salt industry—Determination of insoluble matter
Chinese Name:	制盐工业通用试验方法 水不溶物的测定
Chinese Classification:	X35    Salt production in general
Professional Classification:	GB    National Standard
ICS Classification:	71.060.50 71.060.50    Salts 71.060.50
Issued by:	AQSIQ;SAC
Issued on:	2012-6-29
Implemented on:	2012-12-1
Status:	valid
Superseding:	GB/T 13025.4-1991 General test method in salt industry-Determination of insoluble matter
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	80.0
Delivery:	via email in 1 business day

1 Scope This Standard specifies the determination method of insoluble matter in salt products and chemicals. This Standard is applicable to the determination of insoluble matter in salt products and chemicals. 2 Normative References The following document for the application of this document is essential. For dated reference, only the edition cited applies. For undated reference, the latest edition of the normative document (including any amendments) applies. GB/T 6682-2008 Water for Analytical Laboratory Use-Specification and Test Methods 3 Principle The specimen is dissolved in water and filtered by suction with a glass crucible and the residue is dried and weighed to determine the content of insoluble matter. 4 Reagent

Foreword I 1 Scope 2 Normative References 3 Principle 4 Reagent 5 Apparatus 6 Analysis Procedures 7 Calculation of Results 8 Accuracy