Standard No.:	GB/T 13025.7-2012
English Name:	General test method in salt industry—Determination of iodine
Chinese Name:	制盐工业通用试验方法 碘的测定
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 13025.7-1999 General test method in salt industry--Determination of iodide ion
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	130.0
Delivery:	via email in 1 business day

1 Scope This part of GB/T 13025 specifies the determination method for iodine in iodized edible salt. In this part, direct titrimetric method is applicable to determination of iodine in edible salt with iodate, oxidation reduction titration is applicable to determination of iodine in edible salt with iodide or the reducing substances, while photometric method is applicable to rapid determination of iodine. 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 Volumetric Method

Foreword I 1 Scope 2 Normative References 3 Volumetric Method 4 Photometric Method (Determination Method with Special Iodimetry Apparatus)