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Code of Federal Regulations Title 42. Public Health 42 CFR Pt. 84, Subpt. I, Tbls. TABLES TO SUBPART I OF PART 84

Current as of October 02, 2022 | Updated by FindLaw Staff

Table 5—Canister Bench Tests and Requirements for Front-Mounted and Back-Mounted Gas Mask Canisters

[42 CFR part 84, subpart I]

Test atmosphere

Canister type

Test condition

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

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]

Test atmosphere

Canister type

Test condition

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

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]

Test atmosphere

Canister type

Test condition

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

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±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 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.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 42. Public Health 42 CFR Pt. 84, Subpt. I, Tbls. TABLES TO SUBPART I OF PART 84 - last updated October 02, 2022 | https://codes.findlaw.com/cfr/title-42-public-health/cfr-pt-42-84-subpt-i-tbls/

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