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See Chinese contents: HG/T 3696.2-2011 HG/T 3696.2-2011: Inorganic chemicals for industrical use. Preparations of standard and reagent solutions for chemical analysis. Part 2: Preparations of standard solutions for impurity
This part specifies the preparation method of impurity standard solution for chemical analysis of inorganic chemical products. This part is applicable to the preparation of the standard solution of a certain element, ion or molecule of a precise amount in a certain volume as required for the determination of the impurity content in the inorganic chemical product analysis. It may also be used for chemical analysis of other chemical products.
