1 Scope
This standard specifies the requirements, test methods, inspection rules marking, packaging, transport and storage etc. for tetrahydrofuran for industrial use.
This standard is applicable to the production, inspection and distribution of tetrahydrofuran for industrial use.
Chemical formula: C4H8O
Structural formula:
Relative molecular mass: 72.13 (according to international relative atomic masses in 2007)
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) to, 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 editions of these documents are applicable. For undated references, the latest edition of the normative documents referred to applies.
GB 190 "Packing Symbol of Dangerous Goods"
GB/T 325.1 "Packing Containers - Steel Drums - Part 1: General Specifications"
GB/T 3143 "Color Determination Method of Liquid Chemicals (Hazen Unit - Platinum-cobalt Scale)"
GB/T 6283-2008 "Chemical Products - Determination of Water Karl Fischer Method (General Method) "
GB/T 6678 "General Principles for Sampling Chemical Products"
GB/T 6680 "General Rules for Sampling Liquid Chemical Products"
GB/T 6682-2008 "Water for Analytical Laboratory Use-Specification and Test Methods (ISO 3696: 1987, MOD)"
GB/T 8170 "Rules of Rounding off for Numerical Values & Expression and Judgment of Limiting Values"
GB/T 9722-2006 "Chemical Reagent - General Rules for the Gas Chromatography"
3 Requirements
Contents
Foreword I
1 Scope
2 Normative References
3 Requirements
4 Test Methods
5 Inspection Rules
6 Marking, Packaging, Transport and Storage
7 Safety
Appendix A (Normative) Typical Chromatogram of Tetrahydrofuran Content Determination, Relative Retention Value and Relative Correction Factor of Each Component
Appendix B (Informative) Determination of 2,6-Di-tert-butyl-4-methylphenol (BHT) Content
