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GB/T 34643-2017 English PDF

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GB/T 34643-2017: Sintered metal porous materials -- Determination of air filter permeability
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Basic data

Standard ID GB/T 34643-2017 (GB/T34643-2017)
Description (Translated English) Sintered metal porous materials -- Determination of air filter permeability
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H16
Classification of International Standard 77.160
Word Count Estimation 10,153
Date of Issue 2017-09-29
Date of Implementation 2018-04-01
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 34643-2017: Sintered metal porous materials -- Determination of air filter permeability

---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.
Sintered metal porous materials - Determination of air filter permeability ICS 77.160 H16 National Standards of People's Republic of China Sintered metal porous material Determination of gas filtration performance 2017-09-29 Posted 2018-04-01 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 is proposed by China Nonferrous Metals Industry Association. This standard by the National Non-ferrous Metal Standardization Technical Committee (SAC/TC243) centralized. This standard is drafted by Northwest Institute of Nonferrous Metal, Western Pao Technology Co., Ltd., Chengdu Yi State Science and Technology Co., Ltd.. The main drafters of this standard. Chen Jinmei, Tan Ping, Tang Huiping, Wang Qiangbing, Dong Lingfeng, Gao Lin, Pi Yan Xia, Ai-Jun Li. Sintered metal porous material Determination of gas filtration performance

1 Scope

This standard specifies the sintered metal porous material gas filtration performance measurement method. This standard applies to the powder metallurgy sintered metal porous pipe and sheet gas filtration performance measurement.

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 5163 Sintered metal materials (excluding cemented carbide) Permeable sintered metal material density, oil content and open area Determination GB/T 28957.1-2012 Road vehicles - Test dust for filter assessment - Part 1. Silica test dust

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Test flow testflowrate The amount of clean air passing through the filter per unit of time. 3.2 Test surface velocity testfacevelocity The amount of clean air that passes through the filter media per unit area of time. 3.3 Differential pressure Differentialpressure A certain flow of clean air through the filter pressure drop across. 3.4 Blow back pressure differential backblowpressure The pressure difference at which backflushing started in the cycle performance test. 3.5 Initial resistance initialpressuredrop Clean air resistance of the measured material through the rated flow. 3.6 Final resistance finalpressuredrop In the rated flow, due to the dust filter so that the pressure drop and reach the final resistance, generally given to customers. 3.7 Dust concentration dustconcentration The mass of test dust contained in the air per unit volume.

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