This standard specifies 20 standard colors with different hues, and the general rules for using these standard colors for the determination of easily charred substances. This standard applies to the determination of easily carbonized substances in organic chemical reagents.
GB/T 9737-2008 Referenced Document
GB/T 601 Chemical reagent.Preparations of reference titration solutions*, 2016-10-13 Update
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*, 2023-08-06 Update
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 9737-2008 history
2008GB/T 9737-2008 Chemical reagent.General rules for the determination of readily carbonizable substances
1988GB/T 9737-1988 Chemical reagent--General rules for the measurement of readily carbonizable substances