GB/T 5332-2007Method of test for ignition temperature of flammable liquids and gases (English PDF)

Foreword

This standard is identical with IEC 60079-4. 1975 "explosive gas atmospheres Electrical Equipment Part 4 square test for ignition temperature Law "second edition (in English and/or French), including its amendments IEC 60079-4-Amd1.1995.

This standard is equivalent translation IEC 60079-4. 1975.

For ease of use, this standard made the following editorial changes.

a) "this International Standard" be replaced by "this standard";

b) use a decimal point instead of a decimal comma ",". ",";

c) Remove the preface to the international standards;

d) Remove the suspension of paragraph 4;

e) increased 4.2 tables in table number, table name;

f) increased 4.4.1 and 4.4.2 of the section heading;

g) increased 5.1 bar title;

h) of the content to 5.2 5.2.1.

This standard replaces GB/T 5332-1985 "Test method for temperature ignition of flammable liquids and gases." this standard and GB/T 5332-1985 compared to the major differences are as follows.

--- According to IEC 60079-4:1995 "Test Methods for repair orders ignition temperature 1" in Appendix A to asbestos insulation materials;

--- In Appendix A, adding another furnace (Furnace # 2) and the corresponding description of FIG.

Appendix A of this standard is an informative annex.

Please note that some of the content of this standard may involve patents. The standard release mechanism should not bear the responsibility to identify these patents.

The standard proposed by the People's Republic of China Ministry of Public Security.

This standard by the National Standardization Technical Committee on Fire First Technical Committee (SAC/TC113/SC1) centralized.

This standard was drafted. Tianjin Fire Research Institute of Ministry of Public Security.

1 Scope

This standard specifies the method for determination of chemical purity flammable liquid and vapor gas ignition temperature (self-ignition temperature) atmospheric pressure air.

2 Terms and definitions

The following terms and definitions apply to this standard.

According to the method specified in this standard test, the lowest temperature when ignition occurs.

Flammable liquids or gases in the test of the flask were heated, the occurrence of visible flame and/or explosive chemical reaction, this reaction Delay time of less than 5min.

Instantaneous sample is completely injected into the flask to the time required for ignition occurs.

3 Test Overview

After exposure to a volume of 200mL conical flask was heated to a certain temperature, the flammable liquid or gas sample injection amount of the cone Shaped flask, the flask in the dark room and observed whether ignition occurs. By using different temperatures and repeat the test sample amount, the ignition occurs the lowest temperature of the flask as the sample in air at atmospheric pressure ignition temperature.

4 Test device