GB/T 34711-2017 English PDF

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GB/T 34711-2017: Testing method for classification of chemically unstable gases
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 34711-2017	199	Add to Cart	3 days	Testing method for classification of chemically unstable gases	Valid

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Basic data

Standard ID: GB/T 34711-2017 (GB/T34711-2017)
Description (Translated English): Testing method for classification of chemically unstable gases
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A80
Classification of International Standard: 13.300
Word Count Estimation: 10,169
Date of Issue: 2017-11-01
Date of Implementation: 2018-05-01
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

GB/T 34711-2017: Testing method for classification of chemically unstable gases

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Testing method for classification of chemically unstable gases ICS 13.300 A80 National Standards of People's Republic of China Chemical unstable gas classification test method Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard and the United Nations "Recommendations on the Transport of Dangerous Goods Test and Standards Manual (Recommendationsonthe transportofdangerousgoods-Manualoftestsandcriteria) (Rev. 6). This standard by the National Standardization Technical Committee of hazardous chemicals management (SAC/TC251) and focal point. This standard was drafted by Shanghai Chemical Industry Research Institute. The main drafters of this standard. Fanbin, Xiaoqiu Ping, Liu Gang, Zhou Jian, Zeng Guoliang. Chemical unstable gas classification test method

1 Scope

This standard specifies the chemical instability of gas classification test methods. This standard applies to GHS, an additional sub-category of flammable gases --- chemically unstable gas classification test. This standard does not apply to test the decomposition of gas under the conditions of the chemical plant and gas mixture may occur between different gases Risk response.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 27862 Chemical Hazard Classification Test Method Gas and gas mixture combustion potential and oxidation capacity GB 30000.3 Chemical Classification and Labeling - Part 3. Flammable gases

3 Terms and definitions

GB 30000.3 defined and the following terms and definitions apply to this document. 3.1 Chemical instability Even in the absence of any combustibles (such as air or oxygen), the gas or gas mixture can still react dangerously Should result in a characteristic of increased temperature and/or pressure. 3.2 Chemical instability gas chemicalyunstablegases Flammable gas that can react violently even in the absence of air or oxygen. NOTE Mixtures (such as flammable gases and oxidizing gases) that react dangerously with each other and are not considered chemically unstable as referred to in this standard gas. 3.3 Test gas The gas or gas mixture under test. 3.4 Initial pressure initialpressure p0 The pressure in the container was tested under normal temperature and pressure (20 ° C, 101.3 kPa). 3.5 The corresponding initial pressure correspondinginitialpressure pc The pressure in the vessel when tested at 65 ° C. NOTE For a fully gaseous test gas, the corresponding initial pressure is the pressure in the vessel at the maximum (filling) pressure at 65 ° C at ambient temperature ......

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