- 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 | Number of tests | Maximum allowable penetratin (parts per million) | Minimum service life (minutes) 1 | Gas or vapor | Concentration (parts per million) | Flow rate (liters per minute) | Acid gas | As received | SO | 20,000 | 64 | 3 | 5 | 12 | Equilibrated | Cl | 20,000 | 64 | 3 | 5 | 12 | SO | 20,000 | 32 | 4 | 5 | 12 | Cl | 20,000 | 32 | 4 | 5 | 12 | Organic vapor | As received | CCl | 20,000 | 64 | 3 | 5 | 12 | Equilibrated | CCl | 20,000 | 32 | 4 | 5 | 12 | Ammonia | As received | NH | 30,000 | 64 | 3 | 50 | 12 | Equilibrated | NH | 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 |
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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 | Number of tests | Maximum allowable penetration (parts per million) | Minimum service life (minutes) 1 | Gas or vapor | Concentration (parts per million) | Flow rate (liters per minute) | Acid gas | As received Equilibrated | SO | 50,000 | 64 | 3 | 5 | 12 | Cl | 5,000 | 64 | 3 | 5 | 12 | SO | 5,000 | 32 | 4 | 5 | 12 | Cl | 5,000 | 32 | 4 | 5 | 12 | Organic vapor | As received Equilibrated | CCl | 5,000 | 64 | 3 | 5 | 12 | CCl | 5,000 | 32 | 4 | 5 | 12 | Ammonia | As received Equilibrated | NH | 5,000 | 64 | 3 | 50 | 12 | As received Equilibrated | NH | 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 |
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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 | Number of tests | Maximum allowable penetration (parts per million) | Minimum service life (minutes) 1 | Gas or vapor | Concentration (parts per million) | Flow rate (liters per minute) | Acid gas | As received | SO | 5,000 | 64 | 3 | 5 | 12 | Equilibrated | Cl | 5,000 | 64 | 3 | 5 | 12 | SO | 5,000 | 32 | 4 | 5 | 12 | Cl | 5,000 | 32 | 4 | 5 | 12 | Organic vapor | As received | CCl | 5,000 | 64 | 3 | 5 | 12 | Equilibrated | CCl | 5,000 | 32 | 4 | 5 | 12 | Ammonia | As received | NH | 5,000 | 64 | 3 | 50 | 12 | Equilibrated | NH | 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 |
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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.