This standard specifies the method for determining the b* value of industrial purified terephthalic acid (PTA). This standard is applicable to the determination of b* value of industrial purified terephthalic acid.
SH/T 1612.10-2005 Referenced Document
GB/T 6679-2003 General rules for sampling solid chemical products
GB/T 8170-1987 Rules for rounding off of numerical values
SH/T 1612.10-2005 history
2005SH/T 1612.10-2005 Purified terephthalic acid for industrial use - Determination of b* (CIE 1976) value - Different color meter