GB/T 223.68-1997 in English

1 Scope

This standard specifies the potassium iodate titration method after combustion in the pipe furnace for the determination of sulfur content.
This standard is applicable to the determination of 0.0030%(m/m)~0.20%(m/m) sulfur 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. At time of publication, 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 Analytical Procedure
8 Analysis Result and Its Expression
9 Precision
10 Test Report
Appendix A (Informative) Samples Used for Precision Test of Potassium Iodate Titration Method after Combustion in the Pipe Furnace
Appendix B (Informative) Source Data of Precision Test for Potassium Iodate Titration Method after Combustion in the Pipe Furnace