Standard No.:	HG/T 2074-2011
English Name:	Sodium hydrosulfite
Chinese Name:	保险粉（连二亚硫酸钠）
Chinese Classification:	G71    Chemical additive
Professional Classification:	HG    Professional Standard - Chemistry
Source Content Issued by:	MIIT
Issued on:	2011-12-20
Implemented on:	2011-12-20
Status:	valid
Superseding:	HG/T 2074-2004 Sodium hydrosulfite
Target Language:	English
File Format:	PDF
Word Count:	2000 words
Translation Price(USD):	194.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the requirements, safety information, sampling, test methods and inspection rules, as well as marking, labelling, packaging, transportation and storage of sodium hydrosulfite. This standard is applicable to product quality control of sodium hydrosulfite. Molecular formula: Na2S2O4 Relative molecular mass: 174.11 (as per IUPAC 2007 standard atomic weights) CAS RN: 7775-14-6 2 Normative References The following referenced documents are indispensable for the application of this document. 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 Packaging — Pictorial Marking for Handling of Goods (mod GB/T 191-2008, ISO 780:1997) GB/T 601 Chemical Reagent — Preparations of Reference Titration Solutions GB/T 603 Chemical Reagent — Preparations of Reagent Solutions for Use in Test Methods (neq GB/T 603-2002, ISO 6353-1:1982) GB/T 6678-2003 General Principles for Sampling Chemical Products GB/T 6682-2008 Water for Laboratory Use — Specifications and Test Methods (mod ISO 3696:1987)

Foreword I 1 Scope 2 Normative References 3 Requirements 4 Safety Information 5 Sampling 6 Test Method 7 Inspection Rules 8 Marking, Labelling, Packaging, Transportation and Storage