General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 6324.7-2014
Scope
This part of GB/T6324 specifies the method for the determination of melting chromaticity by visual colorimetry and tristimulus value colorimetry. This section is applicable to the determination of the color of organic chemical products that are solid at room temperature and have no visible turbidity in molten state.
GB/T 6324.7-2014 Referenced Document
GB/T 3143 Color determination method of liquid chemicals(Hazen unit--Platinum-cobalt scale)
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*, 2023-08-06 Update
GB/T 6324.6 Test method of organic chemical products.Part 6:Determination of color for liquids.Tristimulus colorimetry
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 9721 chemical reagent General rules for the molecular absorption spectrophotometry (ultraviolet and visible)
GB/T 6324.7-2014 history
2015GB/T 6324.7-2014 Test methods for organic chemical products - Part 7: Determination of melt color