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About This Item


Full Description

This Recommended Practice (RP) discusses test methods for physical and filtration properties of high-efficiency particulate air (HEPA) and ultra low penetration air (ULPA) filtration media. Photometric and particle count methods are presented. Applications of this document include acceptance criteria for test methods, test aerosol and particle size, and test face velocity. The RP details methods for testing for resistance to airflow, ULPA filter media penetration, thickness, impact score tensile strength, and other tests. Supersedes previous editions of IEST-RP-CC021.

Document History

  1. IEST RP-CC021.4


    Testing HEPA and ULPA Filter Media

    • Most Recent
  2. IEST RP-CC021.3

    Testing HEPA and ULPA Filter Media

    • Historical Version
  3. IEST RP-CC021.1

    Testing ULPA and HEPA Filter Media

    • Historical Version