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1 Scope
This standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation and storage of 1,1,1,2-tetrafluoroethane for industrial use
Molecular formula: C 2 H 2 F 4
Structural formula:
Relative molecular mass: 102.
2 reference standards
The provisions contained in the following standards constitute the provisions of this standard through quotation in this standard
GB191-2000 Packaging, Storage and Transportation Graphic Mark (eqvISO780: 1997)
Preparation of GB/T601 Chemical Reagent Standard Titration Solution
Preparation of preparations and products used in GB/T603 chemical reagent test method
The expression and judgment method of GB/T1250 limit value
GB/T6680-1986 General Rules for Sampling of Liquid Chemical Products
GB/T6682 Analytical laboratory water specifications and test methods (eqvISO3696: 1987
GB / T7373-1987 industrial two chlorodifluoromethane (F.
GB/T9722 Chemical Reagent Gas Chromatography General Rules
GB/T10627 Gas Analysis Standard Mixed Gas Preparation Static Volume Method (idtISO6144:1981)
GB14193 Liquefied Gas Cylinder Filling Regulations
3 requirements
3.
3.
Table 1 Technical requirements