1 Scope
This standard specifies requirements, test methods, inspection rules, marking, packing, transportation, storage and safety of the potassium nitrate for industrial use.
This standard is applicable to the potassium nitrate for industrial use that is mainly used as the raw material of black powder, primacord, optical glass, ammonia catalyst, heat treatment of metals, porcelain glaze and medical intermediate.
2 Normative References
The following documents are indispensable for the application of this standard. For dated references, only the dated edition is applicable to this document. For undated references, the latest editions of the normative documents (including all the amendments) are applicable to this document.
GB 190-2009 Packing Symbol of Dangerous Goods
GB/T 191-2008 Packaging-Pictorial Marking for Handling of Goods
GB/T 685-1993 Chemical Reagents - Aqueous Formalin
GB/T 3049-2006 Chemical Products for Industrial Use - General Method for Determination of Iron Content - 1,10-Phenanthroline Spectrophotometric Method
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 6682-2008 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/T 8946-1998 Plastic Woven Sack
GB/T 23945-2009 Inorganic Chemicals for Industrial Use-General Method for the Determination of Chloride Content-Visible Turbidimetric Method
HG/T 3696.1 Inorganic Chemical Products - Preparations of Standard Volumetric Solutions for Chemical Analysis
HG/T 3696.2 Inorganic Chemical Products - Preparations of Standard Solutions for Chemical Analysis
HG/T 3696.3 Inorganic Chemical Products - Preparations of Reagent Solutions for Chemical Analysis
3 Molecular Formula and Relative Molecular Mass
Molecular formula: KNO3
Relative molecular mass: 101.10 (in accordance with the international relative atomic mass in 2007)
4 Requirements
