This standard specifies the requirements, test methods, inspection rules, marking and labelling as well as packaging, transportation and storage of sodium hypophosphite for industrial use.
This standard is applicable to sodium hypophosphite for industrial use which is mainly used as the reductant for electroless plating and the raw material for preparing other hypophosphite, fine chemicals and the like.
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), 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 3049-2006 Chemical Products for Industrial Use - General Method for Determination of Iron Content C 1,10-Phenanthroline Spectrophotometric Method (idt ISO 6685:1982)
GB/T 3050-2000 Inorganic Chemical Products for Industrial Use - General Method for Determination of Chloride Content - Potentiometric Method (neq ISO 6227:1982)
GB/T 6678 General Principles for Sampling Chemical Products
GB/T 6682-2008 Water for Analytical Laboratory Use - Specification and Test Methods (mod ISO 3696:1987)
GB/T 8170 Rules of Rounding off for Numerical Values & Expression and Judgement of Limiting Values
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
