1. BS EN 148-2:1999. Respiratory protective devices - Threads for facepieces - Part 2: Centre thread connection

2. BS EN 148-3:1999 (2000). Respiratory protective devices - Threads for facepieces - Part 3: Thread connection M45 × 3

3. BS EN 149:2001 + A1:2009. Respiratory protective devices - Filtering half masks to protect against particles - Requirements, testing,marking

4. BS EN 165:2005. Personal eye-protection - Vocabulary

5. BS EN 166:2002. Personal eye-protection - Specifications

6. BS EN 167:2002. Personal eye-protection - Optical test methods

7. BS EN 169:2002. Personal eye-protection - Filters for welding and related techniques - Transmittance requirements and recommended use

8. BS EN 171:1992. Specification for Infra-red filters used in personal eye-protection equipment

9. BS EN 172:1995. Personal eye protection - Sunglare filters for industrial use

10. BS EN 175:1997. Personal protection - Equipment for eye and face protection during welding and allied processes