1 Scope
This standard specifies the test conditions, test procedures, result expression, judging rules and submittal requirements for inspection of safety test to friction spark of metallic materials for coal mine.
This standard is applicable to the friction spark safety tests of metallic materials for coal mine; the friction spark safety tests of metallic materials in other similar explosive hazardous environment may refer to this standard.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
Contents
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Combustible Gas for Test Use
5 Test Instruments
6 Test Environment Conditions
7 Test Methods
8 Friction Spark Safety Test of Metallic Materials
9 Judging Rules
10 Submittal Requirements for Inspection
Appendix A (Normative) Test Specimen Drawing and Quantity
