ASTM E128 - 99(2011)

    Standard Test Method for Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use

    Active Standard ASTM E128 | Developed by Subcommittee: E41.01

    Book of Standards Volume: 14.04


      Format Pages Price  
    PDF 4 $37.00   ADD TO CART
    Hardcopy (shipping and handling) 4 $37.00   ADD TO CART


    Abstract

    This test method covers the determination of maximum pore diameter and permeability of rigid porous filters used in the laboratory for filtration or diffusion. They are applicable to filters made of sintered glass, ceramic, metal, or plastic. This test method establishes a uniform designation for maximum pore diameter and also provides a means of detecting and measuring changes which occur through continued use. Maximum pore diameter is determined by immersing the filter in a suitable test liquid and applying air pressure until the first bubble of air passes through the filter. The maximum pore diameter is calculated from the surface tension of the test liquid and the applied pressure. Permeability is determined by measuring the flow of air through the filter when subjected to a pressure differential.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    Significance and Use

    1. Scope

    1.1 This test method covers the determination of maximum pore diameter and permeability of rigid porous filters used in the laboratory for filtration or diffusion. They are applicable to filters made of sintered glass, ceramic, metal, or plastic. This test method establishes a uniform designation for maximum pore diameter and also provides a means of detecting and measuring changes which occur through continued use.

    1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.3 This standard does not purport to address all of the safety problems, if any, 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D845 Specification for Five-Degree Xylene


    UNSPSC Code

    UNSPSC Code 41104918(Laboratory glass filters)


    DOI: 10.1520/E0128-99R11

    ASTM International is a member of CrossRef.

    ASTM E128

    Citing ASTM Standards
    Back to Top