Standard No.:	GB/T 223.79-2007
English Name:	Iron and steel—Determination of multi-element contents—X-ray fluorescence spectrometry(Routine method)
Chinese Name:	钢铁 多素含量的测定 X-射线荧光光谱法（常规法）
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:	2007-12-18
Implemented on:	2008-2-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	80.0
Delivery:	via email in 1 business day

1 Scope This Part of GB/T 223 specifies fluorescent spectrometry to be applied to determine the content of silicon, manganese, phosphorus, sulfur, copper, aluminium, nickel, chromium, molybdenum, vanadium, titanium, tungsten and niobium. This Part is applicable to cast iron, pig iron, non-alloy steel, low alloy steel, and the determination range of each element is detailed in Table 1.

Foreword I 1 Scope 2 Normative References 3 Principle 4 Reagents 5 Apparatus 6 Sampling and Sample Preparation 7 Apparatus Preparation 8 Analytical Procedures 9 Result Calculation 10 Precision 11 Test Reports Appendix A (Normative) Acceptance Flow Diagram of Sample Assay Value Appendix B (Normative) Accuracy Test of Apparatus

* GB/T 6379.1-2004 Accuracy(trueness and precision) of measurement methods and results - Part 1: General principles and definitions
* GB/T 6379.2-2004 Accuracy (trueness and precision) ofmeasurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
* GB/T 16597-1996 Analytical methods of metallurgical products General rule for X-ray fluorescence spectrometric methods
* GB/T 20066-2006 Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition