Standard No.:	GB/T 223.73-2008
Chinese Name:	钢铁及合金 铁含量的测定 三氯化钛-重铬酸钾滴定法
English Name:	Iron steel and alloy - Determination of iron contents - Titanium trichloride-potassium dichromate titration method
Professional Classification:	H11 Steel and iron alloy analysis method
Professional Classification:	GB National Standard
ICS Classification:	77.080.01 Ferrous metals in general
Issued by:
Issued on:	2008-05-13
Implemented on:	2008-11-01
Status:	VALID
Replace:	GB/T223.73-1991 Methods for chemical analysis of iron, steel and alloy The titanium trichloride-potassium dichromate volumetric method for the determiination of iron content
Language:	English
File Format:	PDF
Word Count:	3500 words
Price(USD):	105 (USD)
Delivery:	via email in 1-3 business day

1 Scope
This Part of GB/T 223 specifies titanium trichloride - potassium dichromate titration method for determination of iron content.
This Part is applicable to determination of iron in high temperature alloy and precision alloy with iron mass fraction of 0.50%~8.00%.

2 Normative References

The following standards contain provisions which, through reference in this text, constitute provisions of this Part of GB/T 223. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to this Part are encouraged to research whether the latest editions of these documents are applied or not. For undated references, the latest edition of the normative document referred to applies.
GB/T 6379.1 Accuracy (Trueness and Precision) of Measurement Methods and Results - Part 1: General Principles and Definitions
GB/T 6379.2 Accuracy (Trueness and Precision) of Measurement Methods and Results - Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method
GB/T 20066 Steel and Iron - Sampling and Preparation of Samples for the Determination of Chemical Composition