HG/T 3473-2003Chemical reagent - Reduced iron powder (English PDF)

1 Scope

This standard specifies the specifications, test methods, inspection rules, packaging and marking of the chemical reagent - iron powder reduced.

2 Normative references

The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.

GB/T 601 Chemical reagent - Preparations of reference titration solutions

GB/T 602 Chemical reagent - Preparations of standard solutions for impurity

GB/T 603 Chemical reagent - Preparations of reagent solutions for use in test methods

GB/T 609 Chemical reagent - General method for the determination of total nitrogen (eqv ISO 6353-1: 1982)

GB/T 619 Chemical reagent - Regulations for sampling and acceptance

GB/T 6682 Water for analytical laboratory use - Specification and test methods (neq ISO 3696: 1987)

GB/T 9723-1988 Chemical reagent - General rule for flame atomic absorption spectrometric analysis

GB 15346 Chemical reagent - Packaging and marking

3 Properties

This reagent is gray-black powder.

4 Specifications

The chemical reagent - iron powder reduced shall conform to the specifications in Table 1.