Federal regulations · Through 2026-08-25 · Newer source version available

42 CFR 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 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 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 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 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 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.

Where this section sits in the code

Title 42—Public Health
CHAPTER I—PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES
SUBCHAPTER G—OCCUPATIONAL SAFETY AND HEALTH RESEARCH AND RELATED ACTIVITIES
PART 84—APPROVAL OF RESPIRATORY PROTECTIVE DEVICES
Subpart I—Gas Masks

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 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 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 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 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 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.

Collected 2026-08-27T02:26:11Z. Source file · JSON

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