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GB/T 23767-2009 English PDF

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GB/T 23767-2009: General method for measuring solid chemicals fire limits in gaseous oxidants
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Basic data

Standard ID GB/T 23767-2009 (GB/T23767-2009)
Description (Translated English) General method for measuring solid chemicals fire limits in gaseous oxidants
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard R04
Classification of International Standard 13.300
Word Count Estimation 16,119
Date of Issue 2009-05-13
Date of Implementation 2010-01-01
Quoted Standard GB/T 2918-1998; GB/T 3863-2008; GB/T 3864-2008
Adopted Standard ASTM G125-2000, MOD
Regulation (derived from) PRC National Standard Approval Announcement 2009 No.6 (Total No.146)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the particular pressure, temperature, flow conditions, case where the direction of propagation of combustion systems and usually various other geometric characteristics were measured in a variety of materials to maintain the combustion gases oxidant balance extreme conditions. This standard applies under specified test conditions of heat and flame reactive material, product performance or molded parts were measured and described, but can not be directly used to describe or evaluate material under actual fire conditions fire danger and harm. This method is more suitable for the evaluation and testing requirements of similar size and composition of the combustion performance of the material.

GB/T 23767-2009: General method for measuring solid chemicals fire limits in gaseous oxidants

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General method for measuring solid chemicals fire limits in gaseous oxidants ICS 13.300 R04 National Standards of People's Republic of China Solid chemical products in the gaseous oxidizer General Method combustion limit test Posted 2009-05-13 2010-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This revised standard adopts the American Society for Testing and Materials standard ASTMG125.2000 "liquid and solid fuel material in a gaseous oxidizer Standard Test Method for "burning limit (in English). This standard is based on ASTMG125. "Standard Test Method for combustion of liquid and solid materials in a gaseous oxidant limit" 2000 Re Drafted. Adopting ASTMG125.2000, the standard of this made some changes, and structural differences related to technical differences have been incorporated into the text In, and they relate to the terms of the margin of a single vertical line identification. Appendices A and B are given in these technical differences and List of structural differences and the reasons for your reference. The Standard Appendix A, Appendix B, Appendix C, Appendix D, Appendix E is an information appendix. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee chemical inorganic chemicals Club (SAC/TC63/SC1) centralized. This standard was drafted. People's Republic of China Shandong CIQ, CNOOC Tianjin Chemical Research & Design Institute. The main drafters of this standard. Zhaozu Liang, Guo Yongxin Liu Ruo. This standard is the first release. Solid chemical products in the gaseous oxidizer General Method combustion limit test

1 Scope

This standard specifies a specific pressure, temperature, flow conditions, the direction of propagation and combustion systems are usually a variety of other geometric characteristics situation Under conditions, the test material in various oxidizing gas to maintain combustion balance extreme conditions. This standard applies to provisions under the experimental conditions of heat and flame reactive materials, products or molded parts performance measurement and description Above, but it can not be directly used to describe or evaluate the material under actual fire conditions and the risk of fire hazards. This method is more suitable for evaluation and test Combustion performance test requirements similar-sized materials and components.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Study whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 2918-1998 plastic sample conditioning and testing of the standard environment GB/T 3863-2008 industrial oxygen GB/T 3864-2008 industrial nitrogen

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Within acceptable parameters danger (under the anticipated pressure and temperature conditions), a substance with oxygen and can produce substances comburent Coexistence capability. 3.2 Under specified test conditions, nitrogen-oxygen mixture in substance just to maintain a minimum concentration of oxygen combustion flame to represent the volume fraction. 3.3 Under certain conditions, and at least one variable (common variables oxidant concentration, diluent nature, pressure, temperature, geometric Type, flow rate or combustion parameters), a material just to maintain continuous combustion critical condition. 3.4 Within acceptable parameters danger (under the anticipated pressure and temperature conditions), a substance with an oxidizing agent and can produce comburent The ability of substances to coexist. 3.5 At a given temperature, pressure, flow state and the direction of propagation conditions, an oxidant (such as oxygen, nitrous oxide, fluorine, etc.) and the oxidant A mixture of a diluent (e.g. nitrogen, helium, carbon dioxide, etc.) in a minimum just to maintain continuous combustion oxidant concentration, expressed in volume fraction. Oxidant index according oxidant name definition. such as oxygen limit (index), nitrous oxide limit (index), fluoro limit (index) and the like. Unless otherwise stated, refer to the oxidant oxygen, nitrogen diluent refers to the temperature refers to the temperature.

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