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GB/T 34643-2017Sintered metal porous materials—Determination of air filter permeability (English PDF)

烧结金属多孔材料气体过滤性能的测定

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 29, 2017

Implementation date

April 1, 2018

Scope

GB/T 34643-2017 is the English-translated version of 烧结金属多孔材料气体过滤性能的测定.

GB/T 34643-2017 is the Chinese standard "Sintered metal porous materials—Determination of air filter permeability". Its scope clause reads: 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. Its clauses include terms and definitions.

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Document preview — GB/T 34643-2017

National Standard of the People's Republic of China

ICS: 77.160
Classification: H 16

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Terms and definitions
3.1 Test flow testflowrate
3.2 Test surface velocity
3.3 Differential pressure
3.4 Blow back pressure differential
3.5 Initial resistance
3.6 Final resistance finalpressuredrop
3.7 Dust concentration

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

The amount of clean air that passes through the filter media per unit area of time.

3.3 Differential pressure

A certain flow of clean air through the filter pressure drop across.

3.4 Blow back pressure differential

The pressure difference at which backflushing started in the cycle performance test.

3.5 Initial resistance

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

The mass of test dust contained in the air per unit volume.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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