Tables to Subpart I of Part 84

Public Health 1 2023-10-01 2023-10-01 false Tables to Subpart I of Part 84 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES OCCUPATIONAL SAFETY AND HEALTH RESEARCH AND RELATED ACTIVITIES APPROVAL OF RESPIRATORY PROTECTIVE DEVICES Gas Masks Canister bench tests; minimum requirements. Pt. 84, Subpt. I, Tables Tables to Subpart I of Part 84 Table 5—Canister Bench Tests and Requirements for Front-Mounted and Back-Mounted Gas Mask Canisters [42 CFR part 84, subpart I] Canister type Test condition Test atmosphere Gas or vapor Concentration (parts per million) Flow rate (liters per minute) Number of tests Maximum allowable penetratin (parts per million) Minimum service life (minutes)  1 Acid gas As received SO 2 20,000 64 3 5 12   Equilibrated Cl 2 20,000 64 3 5 12   SO 2 20,000 32 4 5 12   Cl 2 20,000 32 4 5 12 Organic vapor As received CCl 4 20,000 64 3 5 12   Equilibrated CCl 4 20,000 32 4 5 12 Ammonia As received NH 3 30,000 64 3 50 12   Equilibrated NH 3 30,000 32 4 50 12 Carbon monoxide As received CO 20,000 4  64 2 ( 3 ) 60   Equilibrated CO 5,000 2  32 3 ( 3 ) 60   CO 3,000 2  32 3 ( 3 ) 60 Combination of 2 or 3 of above types  5 Combination of all above types  6 1  Minimum life will be determined at the indicated penetration. 2  Relative humidity of test atmosphere will be 95 ±3pct; temperature of test atmosphere will be 25 ±2.5 °C. 3  Maximum allowable CO penetration will be 385 cm  3 during the minimum life. The penetration shall not exceed 500 p/m during this time. 4  Relative humidity of test atmosphere will be 95 ±3pct; temperature of test atmosphere entering the test fixture will be 0 ±2.5 °C−0 °C. 5  Test conditions and requirements will be applicable as shown in this table. 6  Test conditions and requirements will be applicable as shown in this table, except the minimum service lives for acid gas, organic vapor, and ammonia will be 6 min instead of 12 min. Table 6—Canister Bench Tests and Requirements for Chin-Style Gas Mask Canisters [42 CFR part 84, subpart I] Canister type Test condition Test atmosphere Gas or vapor Concentration (parts per million) Flow rate (liters per minute) Number of tests Maximum allowable penetration (parts per million) Minimum service life (minutes)  1 Acid gas As received Equilibrated SO 2 50,000 64 3 5 12   Cl 2 5,000 64 3 5 12   SO 2 5,000 32 4 5 12   Cl 2 5,000 32 4 5 12 Organic vapor As received Equilibrated CCl 4 5,000 64 3 5 12   CCl 4 5,000 32 4 5 12 Ammonia As received Equilibrated NH 3 5,000 64 3 50 12   As received Equilibrated NH 3 5,000 32 4 50 12 Carbon monoxide As received CO 20,000 2  64 2 ( 3 ) 60   CO 5,000 4  32 3 ( 3 ) 60   CO 3,000 2  32 3 ( 3 ) 60 Combination of 2 or 3 of above types  5 Combination of all above types  6 1  Minimum life will be determined at the indicated penetration. 2  Relative humidity of test atmosphere will be 95 ±3pct; temperature of test atmosphere will be 25 ±2.5 °C. 3  Maximum allowable CO penetration will be 385 cm  3 during the minimum life. The penetration shall not exceed 500 p/m during this time. 4  Relative humidity of test atmosphere will be 95 ±3pct; temperature of test atmosphere entering the test fixture will be 0 ±2.5 °C−0 °C. 5  Test conditions and requirements will be applicable as shown in this table. 6  Test conditions and requirements will be applicable as shown in this table, except the minimum service lives for acid gas, organic vapor, and ammonia will be 6 min instead of 12 min. Table 7—Canister Bench Tests and Requirements for Escape Gas Mask Canisters [42 CFR part 84, subpart I] Canister type Test condition Test atmosphere Gas or vapor Concentration (parts per million) Flow rate (liters per minute) Number of tests Maximum allowable penetration (parts per million) Minimum service life (minutes)  1 Acid gas As received SO 2 5,000 64 3 5 12   Equilibrated Cl 2 5,000 64 3 5 12   SO 2 5,000 32 4 5 12   Cl 2 5,000 32 4 5 12 Organic vapor As received CCl 4 5,000 64 3 5 12   Equilibrated CCl 4 5,000 32 4 5 12 Ammonia As received NH 3 5,000 64 3 50 12   Equilibrated NH 3 5,000 32 4 50 12 Carbon monoxide As received CO 10,000 2  32 2 ( 3 ) 4  60   CO 5,000 5  32 3 ( 3 ) 60   CO 3,000 2  32 3 ( 3 ) 60 1  Minimum life will be determined at the indicated penetration. 2  Relative humidity of test atmosphere will be 95 ±3 pct; temperature of test atmosphere will be 25 ±2.5 °C. 3  Maximum allowable CO penetration will be 385 cm  3 during the minimum life. The penetration shall not exceed 500 p/m during this time. 4  If effluent temperature exceeds 100 °C during this test, the escape gas mask shall be equipped with an effective heat exchanger. 5  Relative humidity of test atmosphere will be 95 ±3 pct; temperature of test atmosphere entering the test fixture will be 0 ±2.5 °C−0 °C.