Standard No.:	GB/T 646-2011
English Name:	Chemical reagent—Potassium chloride
Chinese Name:	化学试剂 氯化钾
Chinese Classification:	G62    General inorganic reagent
Professional Classification:	GB    National Standard
ICS Classification:	71.040.30 71.040.30    Chemical reagents 71.040.30
Source Content Issued by:	AQSIQ;SAC
Issued on:	2011-5-12
Implemented on:	2011-12-1
Status:	valid
Superseding:	GB/T 646-1993 Chemical reagents. Potassium chloride
Target Language:	English
File Format:	PDF
Word Count:	6000 words
Translation Price(USD):	160.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the characteristics, specifications, test, inspection rules, packaging and marking of potassium chloride reagent. This standard is applicable to the inspection of potassium chloride reagent. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments (excluding correction of error) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this national standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document applies. GB/T 601 Chemical reagent—Preparations of reference titration solutions GB/T 602 Chemical reagent—Preparations of standard solutions for impurity (GB/T 602-2002, ISO 6353-1: 1982, NEQ) GB/T 603 Chemical reagent—Preparations of reagent solutions for use in test methods (GB/T 603-2002, ISO 6353-1: 1982, NEQ) GB/T 609 Chemical reagent—General method for the determination of total nitrogen (GB/T 609-2006, ISO 6353-1: 1982, NEQ) GB/T 6682 Water for analytical laboratory use—Specification and test methods (GB/T 6682-2008, ISO 3696: 1987, MOD) GB/T 9723-2007 Chemical reagent—General rule for flame atomic absorption spectrometric analysis GB/T 9724 Chemical reagent—General for the determination of pH (GB/T 9724-2007, ISO 6353-1: 1982, NEQ) GB/T 9727 Chemical reagent—General method for the determination of phosphate (GB/T 9727-2007, ISO 6353-1: 1982, NEQ)

Foreword i 1 Scope 2 Normative references 3 Characteristics 4 Specification 5 Tests 6 Inspection rules 7 Packaging and marking