Respiratory protective devices. Methods of test and test equipment - Determination of particle filter penetration Ingestion-build-65808 BS ISO 20474-6: Required for

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Respiratory protective devices. Methods of test and test equipment - Determination of particle filter penetration Ingestion-build-65808 BS ISO 20474-6: Required for1 Scope This part of ISO 16900 specifies the test methods for particle filter penetration of separate or integral filters for respiratory protective devices.