ASTM F778-88(2007)
Standard Methods for Gas Flow Resistance Testing of Filtration Media
- Standard No.
- ASTM F778-88(2007)
- Release Date
- 1988
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM F778-88(2014)
- Latest
- ASTM F778-88(2023)
- Scope
The air-flow resistance (pressure drop) of a filter is an important parameter that can assist in characterizing the physical make-up as well as the utility of a filter.
Therefore, flow characteristics of clean filter media can be used for quality control, product development, and basic research. It may be used by the producer of filter media to illustrate media type or to meet product specification and can be used by the consumer as a criterion for media selection.
These methods may also be used for acceptance testing.
For purposes of quality control, meeting product specification, or acceptance testing, a single-point flow regime on multiple samples is adequate. However, for design, development, and research, a multiple-point flow regime may be necessary.
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.
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.
ASTM F778-88(2007) Referenced Document
- ASTM D1776 Standard Practice for Conditioning and Testing Textiles*， 1998-04-19 Update
- ASTM D1777 Standard Test Method for Thickness of Textile Materials*， 2019-07-01 Update
- ASTM D2905 Standard Practice for Statements on Number of Specimens for Textiles *， 1997-04-19 Update
- ASTM D3574 Standard Test Methods for Flexible Cellular Materials8212;Slab, Bonded, and Molded Urethane Foams*， 1995-04-19 Update
- ASTM D461 Standard practice for lining inspection during flue gas desulfurization system operations*， 1993-01-01 Update
- ASTM D585 Standard Practice for Sampling and Accepting a Single Lot of Paper, Paperboard, Fiberboard, and Related Product *， 1997-04-19 Update
- ASTM D685 Standard Practice for Conditioning Paper and Paper Products for Testing *， 1993-04-19 Update
- ASTM D737 Test Method for Air Permeability of Textile Fabrics*， 1996-04-19 Update
- ASTM E105 Standard Practice for Probability Sampling Of Materials*， 2024-04-19 Update
- ASTM E122 Standard Practice for Calculating Sample Size to Estimate, With a Specified Tolerable Error, the Average for Characteristic of a Lot or Process*， 2000-10-10 Update
ASTM F778-88(2007) history
- 2023 ASTM F778-88(2023) Standard Methods for Gas Flow Resistance Testing of Filtration Media
- 1988 ASTM F778-88(2014) Standard Methods for Gas Flow Resistance Testing of Filtration Media
- 1988 ASTM F778-88(2007) Standard Methods for Gas Flow Resistance Testing of Filtration Media
- 2001 ASTM F778-88(2001) Standard Methods for Gas Flow Resistance Testing of Filtration Media
- 1988 ASTM F778-88(1993) Standard Methods for Gas Flow Resistance Testing of Filtration Media
