GB/T 38100-2019Refrigerant blends R407 series (English PDF)

1 Scope

This standard specifies the classification and naming, technical requirements, test methods, inspection rules, marking, packaging, and transportation of mixed refrigerant R407 series.

Loss, storage and safety.

This standard applies to difluoromethane (hereinafter referred to as R32), pentafluoroethane (hereinafter referred to as R125), 1,1,1,2-tetrafluoroethane (hereinafter simple

R134a) is a raw material, and the mixed refrigerant R407 series obtained by mixing according to a certain mass ratio.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB 190 dangerous goods packaging mark

Preparation of GB/T 601 chemical reagent standard titration solution

Preparation of preparations and products used in GB/T 603 chemical reagent test method

GB/T 6682 Analytical laboratory water specifications and test methods

GB/T 7376-2008 Determination of trace moisture in industrial fluoroalkanes

GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values

GB/T 9722 chemical reagent gas chromatography general rule

GB/T 14193 liquefied gas cylinder filling regulations

GB/T 31400 Determination of fluoroalkane non-condensable gases (NCG) - Gas chromatography

GB/T 31401 Determination of fluoroalkane chlorides (Cl-)

GB/T 33065 General method for determination of acidity of fluoroolefins for refrigerants

GB/T 33066 General method for the determination of fluoroolefin evaporation residues

GB/T 37994 Mixed refrigerant sampling rules

TSGR4002 Mobile Pressure Vessel Filling Permit Rules

3 classification and naming

The classification and naming of the mixed refrigerant R407 series are shown in Table 1.

Table 1 Classification and naming category

Name R407A R407B R407C R407D R407E R407F R407G

Component R32/R125/R134a

Nominal ratio, w/%

20.0/40.0/

40.0

10.0/70.0/

20.0

23.0/25.0/

52.0

15.0/15.0/

70.0

25.0/15.0/

60.0

30.0/30.0/

40.0

2.5/2.5/