Respiratory Protection and Controls to Restrict Internal Exposures (64 FR 54543; October 7, 1999; 64 FR 55524, October 13, 1999) RATS ID 19993 Effective 2/2/00 Change Title State Compatibility Summary of Change to CFR Difference Significant If Difference, Why or Why to NRC Section Category Yes/No Yes/No Not Was a Comment Section Generated 20.1003 Definitions B Added Definition: Airpurifying respirator means a respirator with an airpurifying filter, cartridge, or canister that removes specific air contaminants by passing ambient air through the airpurifying element. 20.1003 Definitions B Added Definition: Assigned protection factor (APF) means the expected workplace level of respiratory protection that would be provided by a properly functioning respirator or a class of respirators to properly fitted and trained users. Operationally, the inhaled concentration can be estimated by dividing the ambient airborne concentration by the APF.
Respiratory Protection and Controls to Restrict Internal Exposures (64 FR 54543; October 7, 1999; 64 FR 55524, October 13, 1999) RATS ID 19993 Effective 2/2/00 Change to NRC Section Title State Section Compatibility Category Summary of Change to CFR Difference Yes/No Significant Yes/No If Difference, Why or Why Not Was a Comment Generated 20.1003 Definitions B Added Definition: Airpurifying respirator means a respirator with an airpurifying filter, cartridge, or canister that removes specific air contaminants by passing ambient air through the airpurifying element. 20.1003 Definitions B Added Definition: Assigned protection factor (APF) means the expected workplace level of respiratory protection that would be provided by a properly functioning respirator or a class of respirators to properly fitted and trained users. Operationally, the inhaled concentration can be estimated by dividing the ambient airborne concentration by the APF.
1999-3.docx