Standard No.:	GB 7746-2011
English Name:	Anhydrous hydrogen fluoride for industrial use
Chinese Name:	工业无水氟化氢
Chinese Classification:	G11    Inorganic acid and alkali
Professional Classification:	GB    National Standard
ICS Classification:	71.060.30 71.060.30    Acids 71.060.30
Issued by:	AQSIQ, SAC
Issued on:	2011-07-20
Implemented on:	2012-5-1
Status:	valid
Superseding:	GB 7746-1997
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	150.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the classification, requirements, test method, inspection rule, marking, label, packaging, transportation, storage and safety of anhydrous hydrogen fluoride for industrial use. This standard is applicable to anhydrous hydrogen fluoride for industrial use; such product is mainly used to prepare electronic-grade hydrofluoric acid, fluorinating agent, fluorine halogen alkane, hydrofluoric acid reagent and other products containing fluorine. 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 to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies. GB 190-1990 Packing Symbol of Dangerous Goods GB/T 191-2008 Packaging-Pictorial Marking for Handling of Goods (ISO 780: 1997, MOD) GB/T 8170 Rules of Rounding Off for Values & Expression and Judgment of Limiting Values GB/T 6678 General Principles for Sampling Chemical Products GB/T 6682-2008 Water for Analytical Laboratory Use - Specification and Test Methods (ISO 3696: 1987, MOD) HG/T 3696.1 Inorganic Chemicals Products Preparation 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 "Safety Inspection Regulations for Gas Cylinders" (Notice of General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; No. 46; 2003) "Management Rules for Dangerous Goods Transportation by Railway" (China Railway Publishing House; 2007)

Contents Foreword I 1 Scope 2 Normative References 3 Molecular Formula and Relative Molecular Mass 4 Classification 5 Requirements 6 Test Method 7 Inspection Rule 8 Marking and Label 9 Packaging, Transportation and Storage 10 Safety Appendix A (Informative) Schedule of Technical Differences between This Standard and Russia Standard and Their Reasons Appendix B (Informative) Schedule of Structural Differences between This Standard and Russia Standard Appendix C (Informative) Determination of Arsenic Content Silver Diethyl Dithiocarbamate Spectrophotometric Method