GB/T 27862-2011Testing method for classification of chemical hazards -- Fire potential and oxidizing ability of gases and gas mixtures (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules.

This standard uses the translation method, identical with ISO 10156:2010 "gases and gas mixtures by measuring fire potential and oxidizing energy Force the selection of cylinder valve exhaust port. " this standard made the following editorial changes.

--- Name to "chemical hazard classification of gases and gas mixtures - Test methods of fire potential and oxidizing ability." this standard is managed by the National Standardization Technical Committee chemicals dangerous (SAC/TC251) and focal points.

This standard was drafted. Shandong Entry-Exit Inspection and Quarantine of Jiangsu, the National Quality Supervision and Inspection of dangerous chemicals center.

Introduction

ISO 5145 "vent gas cylinder valve and the gas mixture selection and sizing" and other similar criteria established decision-cylinder outlet Practical criteria joints. These parameters are fixed based on the physical and chemical properties of the gas. Air flammability and oxidation potential were special consideration.

For pure gases, there is a lot of data in the literature, the difference data depends on the different test methods, and for mixed gas of literature Data is often incomplete or can not be found. This is the difficulty of the standard applications.

The primary objective of this standard is to eliminate the uncertainty of the literature exists, and supplementary data on mixed gas already exist.

In addition to the selection of cylinder valve exhaust port outside the ISO 10156 later used for other purposes, such as the GHS classification and label Sign system (GHS) for the international transport of dangerous substances and precautionary labeling rules establishing flammability and oxidizing potential data.

The second edition of the standard revision began in 2006, the previous version and ISO 10156-2 merged, updated and flammability Oxidizing data.

Chemical hazard classification test method Gases and gas mixtures of fire potential and oxidizing ability

1 Scope

This standard specifies the test method for gas or gas mixture in air under atmospheric conditions of flammable and oxidizing ability.

This standard applies to the classification of gases and gas mixtures, including the selection of cylinder valve exhaust port.

This standard does not apply to other gases and gas mixtures under ambient pressure and temperature.

2 Terms, definitions and symbols