1 Scope
This standard specifies the requirements, test methods, inspection rules, marking, labeling, packaging, transportation and storage of sodium nitrite for industrial use.
This standard is applicable to the sodium nitrite for industrial use. This product is mainly used as raw materials for manufacturing nitro compounds and azo dyes, mordant for fabric dyeing, bleach, metal heat treatment agent, cement early strength agent and antifreeze agent, etc.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 190 Packing symbol of dangerous goods
GB/T 191-2008 Packaging—Pictorial marking for handling of goods
GB/T 3051-2000 Inorganic chemical products for industrial use—General method for determination of chloride content—Mercurimetric method
GB/T 6678 General principles for sampling chemical products
GB/T 6682 Water for analytical laboratory use—Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB 12268-2012 List of dangerous goods
GB 12463-2009 General specifications for transport packages of dangerous goods
GB 15258 General rules for preparation of precautionary label for chemicals
HG/T 3696.1 Inorganic chemicals for industrial use—Preparations of standard and reagent solutions for chemical analysis—Part 1: Preparations of standard volumetric solutions
HG/T 3696.3 Inorganic chemicals for industrial use—Preparations of standard and reagent solutions for chemical analysis—Part 3: Preparations of reagent solutions
3 Molecular formula and relative molecular mass
Molecular formula: NaNO2
Relative molecular mass: 69.00 (according to international relative atomic mass in 2013)
4 Requirements
4.1 Appearance: White or microstrip light yellow crystals.
4.2 The sodium nitrite for industrial shall be tested with the methods specified in this standard, which shall meet those specified in Table 1.
Foreword i
1 Scope
2 Normative references
3 Molecular formula and relative molecular mass
4 Requirements
5 Test methods
6 Inspection rules
7 Marking and labeling
8 Packaging, transportation and storage