1. BS EN 1822-1:2009 High efficiency air мfilters (EPA, HEPA and ULPA) - Part 1: Classification, performance testing, marking

2. BS EN 1822-2:2009 High efficiency air filters (EPA, HEPA and ULPA) - Part 2: Aerosol production, measuring equipment, particle counting statistics

3. BS EN 1822-3:2009 High efficiency air filters (EPA, HEPA and ULPA) - Part 3: Testing flat sheet filter media

4. BS EN 1822-4:2009 High efficiency air filters (EPA, HEPA and ULPA) - Part 4: Determining leakage of filter elements (scan method)

5. BS EN 1822-5:2009 High efficiency air filters (EPA, HEPA and ULPA) - Part 5: Determining the efficiency of filter elements

6. BS EN 1827:1999+A1:2009 Respiratory protective devices - Half masks without inhalation valves and with separable filters to protect against gases or gases and particles or particles only - Requirements, testing, marking

7. BS EN 1834-1:2000 Reciprocating internal combustion engines - Safety requirements for design and construction of engines for use in potentially explosives atmospheres -Part 1: Group II engines for use in flammable gas and vapour atmospher

8. BS EN 1834-2:2000 Reciprocating internal combustion engines - Safety requirements for the design and construction of engines for use in potentially explosive atmospheres - Part 2: Group I engines for use in underground workings susceptibl

9. BS EN 1839:2012 Determination of explosion limits of gases and vapours

10. BS EN 1842:1997 Plastics - Thermoset moulding compounds (SMC - BMC) - Determination of compression moulding shrinkage