Standard No.:	GB/T 223.7-2002
Chinese Name:	铁粉 铁含量的测定 重铬酸钾滴定法
English Name:	Iron powder--Determination of iron content--Potassium dichromate titration method
Professional Classification:	H11 Steel and iron alloy analysis method
Professional Classification:	GB National Standard
ICS Classification:	77.040.30 Chemical analysis of metals
Issued by:
Issued on:	2002-09-11
Implemented on:	2003-02-01
Status:	VALID
Language:	English
File Format:	PDF
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1 Scope

This Standard specifies a method for the determination of the iron content in the iron powder with a potassium dichromate titration method.
This method is applicable to the determination of iron content in iron powder with mass fraction greater than 96 %.

2 Normative References

The following standards contain provisions which, through reference in this text, constitute provisions of this Standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 5314-1985 Powders for Powder Metallurgical Purposes; Sampling
GB/T 12805-1991 Laboratory Glassware-Burettes
GB/T 6379-1986 Precision of Test Methods; Determination of Repeatability and Reproducibility for A Standard Test Method by Interlaboratory Tests