Code of Federal Regulations > Title 42 > Chapter I > Part 84 > Subpart I > Appendix

Regulations last checked for updates: Nov 22, 2024

Title 42 - Public Health last revised: Nov 19, 2024

Appendix - Tables to Subpart I of Part 84

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

Canister type	Test condition	Test atmosphere			Number of tests	Maximum allowable penetratin (parts per million)	Minimum service life (minutes) ¹
Canister type	Test condition	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	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
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 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
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 ±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.

authority: 29 U.S.C. 651

source: 60 FR 30355, June 8, 1995, unless otherwise noted.