Standard No.:	GB/T 626-2006
English Name:	Chemical reagent - Nitric acid
Chinese Name:	化学试剂 硝酸
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:	2006-11-3
Implemented on:	2007-6-1
Status:	superseded
Superseded by:	GB/T 626-2006/XG1-2024 Chemical reagent—Nitric acid , includes Amendment 1
Superseded on:	2024-4-25
Superseding:	GB/T 626-1989 Chemical reagent; Nitric acid
Target Language:	English
File Format:	PDF
Word Count:	3000 words
Translation Price(USD):	140.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the properties, specifications, tests, inspection rules, packaging and marking of chemical reagent nitric acid. This standard is applicable to the inspection of chemical reagent nitric acid. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of any of these publications do not apply to this standard. However parties to agreements based on this 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 referred to 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 605 Chemical reagent - General method for the measurement of colour (GB/T 605-2006, ISO 6353-1:1982, NEQ) GB/T 610.2-1988 Chemical reagent - General method for the determination of arsenic (AgDDTC ) (eqv ISO 6353-1:1982) GB/T 6682 Water for analytical laboratory use - specification and test methods (GB/T 6682-1992, eqv ISO 3696:1987) GB/T 9723-1988 Chemical reagent - General rule for flame atomic absorption spectrometric analysis GB/T 9728 Chemical reagent - General method for the determination of sulphate (GB/T 9728-1988, eqv ISO 6353-1:1982) GB/T 9729 Chemical reagent - General method for the determination of chloride (GB/T 9729-1988, eqv ISO 6353-1:1982) GB/T 9739 Chemical reagent - General method for the determination of iron (GB/T 9739-2006, ISO 6353-1:1982, NEQ) GB/T 9741-1988 Chemical reagent - General method for the determination of residue after ignition (eqv ISO 6353-1:1982) GB 15258 General rules for preparation of precautionary label for chemicals GB 15346 Chemical reagent - Packaging and marking HG/T 3921 Chemical reagent - Regulations for sampling and acceptance 3 Properties The reagent is colorless or light yellow transparent liquid and easy to decompose, with a density of 1.4g/mL.

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