This standard is applicable to wet-process crude phosphoric acid after impurity removal, continental food additive 2 Molecular formula and relative molecular mass
GB 1886.304-2020 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 1886.304-2020 history
2020GB 1886.304-2020 National Food Safety Standard Food Additive Phosphoric Acid (Wet Process)