This standard is applicable to the food additive sodium hexametaphosphate produced by fusion reaction of sodium carbonate or sodium hydroxide and food additive phosphoric acid (including wet-process phosphoric acid).
GB 1886.4-2020 Referenced Document
GB/T 601 Chemical reagent.Preparations of reference titration solutions
GB/T 602 Chemical reagent--Preparations of standard solutions for impurity
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 1886.4-2020 history
2020GB 1886.4-2020 National Food Safety Standard Food Additive Sodium Hexametaphosphate
2015GB 1886.4-2015 National Food Safety Standard Food Additive Sodium Hexametaphosphate