GB/T 7371-1987
Active
GB/T 33065-2016
Active
National standards
GB/T 33065-2016 Fluorinated olefins for refrigerant use—General method for the determination of acidity
GB/T 33065-2016 Fluorinated olefins for refrigerant use—General method for the determination of acidity
Basic Information
Standard Code:
GB/T 33065-2016
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Generally, organic chemical raw materials
ICS Name:
Haloalkanes
Publish Date:
2016-10-13
Implement Date:
2017-05-01
Pages:
6 pages
Scope
This standard specifies the general test method principles, sampling, test methods, and allowable deviations for measuring the acidity of fluorinated olefins used in refrigerants by acid-base titration. This standard is applicable to the determination of acidity in fluorinated olefins used in low-pressure, medium-pressure, and high-pressure refrigerants. The detection sensitivity of this test method is 0.000 005%.
Development Information
Referenced Standards
GB/T 6680-2003 General rules for sampling liquid chemical products
GB/T 6681-2003 General rules for sampling gaseous chemical products
GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions
GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions
GB/T 603-2002 Chemical reagent—Preparations of reagent solutions for use in test methods
GB/T 603-2023 Chemical reagent—Preparations of reagent solutions for use in test methods
GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods
GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods
Related Standards
GB/T 7372-1987
Active
GB/T 7372-1987 Dichlorodifluoromethane for industrial uses
GB/T 7373-1987
Replaced
GB/T 7373-1987 Monochlorodifluoromethane for industrial uses
GB/T 7374-1987
Replaced
GB/T 7374-1987 Fluorinated methanes for industrial uses—Determination of micro-amounts of water—Gravimetric method
GB/T 7375-1987
Replaced
GB/T 7375-1987 Fluorinated methanes for industrial uses—Determination of purity—Gas chromatography
GB/T 7376-1987
Replaced