This standard specifies the method for measuring the whiteness of industrial (including food industry) sodium tripolyphosphate products. This standard is applicable to the determination of whiteness of sodium tripolyphosphate products in industry (including food industry).
GB/T 9984.1-2004 history
2008GB/T 9984-2008 Test methods for industrial sodium tripolyphosphate
2004GB/T 9984.1-2004 The measurement of whiteness for industrial sodium tripolyphosphate
1988GB/T 9984.1-1988 The measurement of whiteness for industrial sodium tripolyphosphate(including foodstuffs)
GB/T 9984.1-2004 The measurement of whiteness for industrial sodium tripolyphosphate was changed to GB/T 9984-2008 Test methods for industrial sodium tripolyphosphate.