Set EN 1822 and EN ISO 29463 standards for Heigh efficiency air filters EPA, HEPA and ULPA

Set EN 1822 and EN ISO 29463 standards for Heigh efficiency air filters EPA, HEPA and ULPA

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• BS EN 1822-1: 2019 - High efficiency air filters (EPA, HEPA and ULPA) - Part 1: Classification, performance testing, marking
  This document applies to high efficiency particulate and ultra-low penetration air filters (EPA, HEPA and ULPA) used in the field of ventilation and air conditioning and for technical processes, e.g. for applications in clean room technology or pharmaceutical industry. It establishes a procedure for the determination of the efficiency on the basis of a particle counting method using a liquid (or alternatively a solid) test aerosol and allows a standardized classification of these filters in terms of their efficiency, both local and integral efficiency.

• BS EN ISO 29463-2:2018 - High-efficiency filters and filter media for removing particles in air Aerosol production, measuring equipment and particle-counting statistics
  specifies the aerosol production and measuring equipment used for testing high-efficiency filters and filter media in accordance with BS EN ISO 29463-3, BS EN ISO 29463-4 and BS EN ISO 29463-5, as well as the statistical basis for particle counting with a small number of counted events. 
  

• BS EN ISO 29463-3:2018 - High-efficiency filters and filter media for removing particles in air Testing flat sheet filter media
  BS EN ISO 29463-3:2018 specifies the test procedure for testing the efficiency of flat sheet filter media

• BS EN ISO 29463-4:2018 - High-efficiency filters and filter media for removing particles in air Test method for determining leakage of filter elements. Scan method 
  BS EN ISO 29463-4:2018 specifies the test procedure of the "scan method", considered to be the reference method, for determining the leakage of filter elements. It is applicable to filters ranging from classes ISO 35 H to ISO 75 U. BS EN ISO 29463-4:2018 also describes the other normative methods: the oil thread leak test and the photometer leak test, applicable to classes ISO 35 H to ISO 45 H HEPA filters, and the leak test with solid PSL aerosol.
• BS EN ISO 29463-5 : 2018 - High-efficiency filters and filter media for removing particles in air Test method for filter elements
  BS EN ISO 29463-5:2018 specifies the reference test procedure for determining the efficiency of filters at their most penetrating particle size (MPPS). BS EN ISO 29463-5:2018 also gives guidelines for the testing and classification for filters with an MPPS of less than 0,1 μm and filters using media with (charged) synthetic fibres.