BS EN 405:2001+A1:2009 PDF

Scope: This European Standard specifies the performance requirements, test methods and marking requirements for valved filtering half masks incorporating either gas or combined filters as respiratory protective devices except for escape purposes. It does not cover gas filtering half masks which do not have valves or are fitted only with exhalation valves. It does not cover devices designed for use in circumstances where there is or might be an oxygen deficiency (oxygen less than a volume fraction of 17 %). Laboratory and practical performance tests are included for the assessment of compliance with the requirements.

BS EN 405:2001+A1:2009 Referenced Document

EN 132 Respiratory protective devices - Definitions of terms and pictograms
EN 13274-7 Respiratory protective devices - Methods of test - Part 7: Determination of particle filter penetration*， 2008-01-01 Update
EN 134 Respiratory protective devices - Nomenclature of components*， 2024-03-27 Update
EN 143 Respiratory protective devices - Particle filters - Requirements, testing, marking*， 2021-01-31 Update
EN 14387 Respiratory protective devices - Gas filter(s) and combined filter(s) - Requirements, testing, marking*， 2021-01-31 Update

2002 BS EN 405:2001+A1:2009 Respiratory protective devices - Valved filtering half masks to protect against gases or gases and particles - Requirements, testing, marking
2002 BS EN 405:2002 Respiratory protective devices - Valved filtering half masks to protect against gases or gases and particles - Requirements, testing, marking
0000 BS EN 405:1993