British Standards Document
BS EN 1822-1
High efficiency air filters (EPA, HEPA and ULPA). Classification, performance testing, marking

https://doi.org/10.3403/30358937U

BS EN 1822-1 is maintained by MCE/21. The current release of this standard is:

BS EN 1822-1:2019 High efficiency air filters (EPA, HEPA and ULPA). Classification, performance testing, marking

https://doi.org/10.3403/30358937 (published 24/04/2019)

This standard is available from the following sources:

Other historical versions of this standard document also exist:

BS EN 1822-1:2009 [current until 24/04/2019]
BS EN 1822-1:1998 [current until 31/12/2009]