ASTM-F778 › Standard Methods for Gas Flow Resistance Testing of Filtration Media
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Scope
1.1 The flow resistance of any fabricated filter device will depend on the flow resistance of the media used.
1.2 This standard offers procedures sufficient to determine the gas flow characteristics of flat specimens of media used in the filtration process. The methods are extended to include pleated specimens and bulk media as well.
1.3 In all cases, flow rates through the specimen are determined in accordance with procedures outlined in ASME "Fluid Meters." The test fluid is air.
1.4 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Keywords
density; filters/filter procedures; flow and flow rate-filters; fluid meters; gas flow; guarded cylinder method; pressure testing-leaks; resistance-airflow; resistance-gas flow; gas flow resistance testing of filtration media; ICS Number Code 71.040.30 (Chemical reagents)
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71.040.30 (Chemical reagents Including reference materials)
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Document Number
ASTM-F0778-88R23
Revision Level
1988 R23 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
Feb. 16, 2023
Document Type
Test Method
Page Count
15 pages
Committee Number
D22.03