42 C.F.R. § 84 app Tables to Subpart I of Part 84-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 | SO2 | 20,000 | 64 | 3 | 5 | 12 |
| Equilibrated | Cl2 | 20,000 | 64 | 3 | 5 | 12 | |
| SO2 | 20,000 | 32 | 4 | 5 | 12 | ||
| Cl2 | 20,000 | 32 | 4 | 5 | 12 | ||
| Organic vapor | As received | CCl4 | 20,000 | 64 | 3 | 5 | 12 |
| Equilibrated | CCl4 | 20,000 | 32 | 4 | 5 | 12 | |
| Ammonia | As received | NH3 | 30,000 | 64 | 3 | 50 | 12 |
| Equilibrated | NH3 | 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 types5 | |||||||
| Combination of all above types6 | |||||||
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 cm3 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 | SO2 | 50,000 | 64 | 3 | 5 | 12 |
| Cl2 | 5,000 | 64 | 3 | 5 | 12 | ||
| SO2 | 5,000 | 32 | 4 | 5 | 12 | ||
| Cl2 | 5,000 | 32 | 4 | 5 | 12 | ||
| Organic vapor | As received Equilibrated | CCl4 | 5,000 | 64 | 3 | 5 | 12 |
| CCl4 | 5,000 | 32 | 4 | 5 | 12 | ||
| Ammonia | As received Equilibrated | NH3 | 5,000 | 64 | 3 | 50 | 12 |
| As received Equilibrated | NH3 | 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 types5 | |||||||
| Combination of all above types6 | |||||||
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 cm3 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 | SO2 | 5,000 | 64 | 3 | 5 | 12 |
| Equilibrated | Cl2 | 5,000 | 64 | 3 | 5 | 12 | |
| SO2 | 5,000 | 32 | 4 | 5 | 12 | ||
| Cl2 | 5,000 | 32 | 4 | 5 | 12 | ||
| Organic vapor | As received | CCl4 | 5,000 | 64 | 3 | 5 | 12 |
| Equilibrated | CCl4 | 5,000 | 32 | 4 | 5 | 12 | |
| Ammonia | As received | NH3 | 5,000 | 64 | 3 | 50 | 12 |
| Equilibrated | NH3 | 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 cm3 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.
42 C.F.R. 84 app Tables to Subpart I of Part 84-Tables to Subpart I of Part 84