Standard No.:	GB/T 223.59-2008
English Name:	Iron, Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method
Chinese Name:	钢铁及合金 磷含量的测定 铋磷钼蓝分光光度法和锑磷钼蓝分光光度法
Chinese Classification:	H11    Steel and iron alloy analysis method
Professional Classification:	GB    National Standard
ICS Classification:	77.080.01 77.080.01    Ferrous metals in general 77.080.01
Issued by:	AQSIQ; SAC
Issued on:	2008-09-19
Implemented on:	2009-4-1
Status:	valid
Superseding:	GB/T 223.59-1987 Methods for chemical analysis of iron, steel and alloy--The reduced molybdoantimonyl phosphoric acid photometric method for the determination of phosphorus content GB 223.59-1987 Methods for chemical analysis of iron,steel and alloy; The reduced molybdoantimonyl phosphoric acid photometric method for the determination of phosphorus content
Language:	English
File Format:	PDF
Word Count:	4500 words
Price(USD):	70.00
Delivery:	via email in 1 business day

1 Scope



This Part of GB/T 223 specifies the determination of phosphorus content with bismuth phosphomolybdate blue spectrophotometric method and antimony phosphomolybdate blue spectrophotometric method.

This Part is applicable to the determination of phosphorus content in pig iron, cast iron, iron powder, carbon steel, low alloy steel and alloy steel and is not applicable to niobium and wolfram steel. The determination scope of Method I is 0.005% ~0.300 % mass fraction while the determination scope of Method II is 0.01 % ~0.06 % mass fraction.



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 is applicable to this Part.

Contents
Foreword I
1 Scope
2 Normative References
3 Method I: Bismuth Phosphomolybdate Blue Spectrophotometric Method
4 Method II: Antimony Phosphomolybdate Blue Spectrophotometric Method
5 Test Report
Appendix A (Informative) Source Data of Common Precision Test