BS-EN-1822-4 › Complete Document History
High efficiency air filters (EPA, HEPA and ULPA)


Obsolete Revision Information:
   REPLACED BY BS-EN-ISO-29463-4 - WITHDRAWN IN 2018 - Oct. 22, 2018
   2009 EDITION - High efficiency air filters (EPA, HEPA and ULPA). Determining leakage of filter elements (scan method) - Jan. 31, 2010
   2000 EDITION - DETERMINING LEAKAGE OF FILTER - Oct. 15, 2000