Standard No.:	GB 1918-2011
English Name:	Potassium nitrate for industrial use
Chinese Name:	工业硝酸钾
Chinese Classification:	G12    Inorganic salt
Professional Classification:	GB    National Standard
ICS Classification:	71.060.50 71.060.50    Salts 71.060.50
Issued by:	AQSIQ; SAC
Issued on:	2011-12-5
Implemented on:	2012-8-1
Status:	superseded
Superseded by:	GB/T 1918-2021 Potassium nitrate for industrial use
Superseded on:	2022-3-1
Superseding:	GB/T 1918-1998 Potassium nitrate for industrial use
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	120.0
Delivery:	via email in 1 business day

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