GB/T 223.71-1997 in English

1 Scope

This standard specifies the gravimetric method after combustion in the pipe furnace for the determination of carbon content.
This standard is applicable to determination of 0.10% (m/m) ~5.00 % (m/m) carbon content in iron, steel, high temperature alloy and precious alloy.

2 Normative References

The following standards contain provisions which, through reference in this text, constitute provisions of this standard. When this standard is published, the editions indicated are valid. All standards are subject to revision, and Parties concerned are encouraged to discuss the possibility of applying the latest edition of the following standards.

Contents
Foreword I
1 Scope
2 Normative References
3 Method Summary
4 Reagents and Materials
5 Instruments and Equipments
6 Sampling and Sample Preparation
7 Analysis Procedures
8 Analysis Results and Expression
9 Precision
10 Test Report
Appendix A (Informative) Samples for the Gravimetric Method Precision Test after Combustion in the Pipe Furnace
Appendix B (Informative) Source Data of Gravimetric Method Precision Test after Combustion in the Pipe Furnace