BS EN 149:2001 – Respiratory protective devices. Filtering half masks to protect against particles. Requirements, testing, marking Respiratory protective devices, OCCUPATIONAL & PERSONAL SAFETY Module (GBM07), British Standards, IHS

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BS EN 149:2001

Respiratory protective devices. Filtering half masks to protect against particles. Requirements, testing, marking

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Summary:
British Standard EN 149:2001 (BS EN 149:2001 Incorporating Corrigendum No. 1) outlines minimum requirements for filtering half masks as respiratory protective devices to protect against particles (except for escape purposes). Laboratory and practical performance tests are included for the assessment of compliance with the requirements. Use of a Sheffield dummy head and breathing machine for testing is described and illustrated. Figure 6 shows a dummy head for carbon dioxide content test of the inhalation air (dead space) for a particle filtering half mask and insert for measuring the breathing resistance. Testing, practical performance, and test procedures using test subjects are addressed.

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