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 Code of Federal Regulations (Last Updated: July 5, 2024)
 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

  Tables to Subpart H of Part 84

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  • Tables to Subpart H of Part 84

    Table 1 - Duration and Sequence of Specific Activities for Test 1, in Minutes

    [42 CFR part 84, subpart H]

    Activity Service time -
    3 minutes 5 minutes 10 minutes 15 minutes 30 minutes 45 minutes 1 hour 2, 3, and 4 hours
    Sampling and readings 2 2 2 2 Perform 1 hour test 2, 3, or 4 times respectively.
    Walks at 4.8 km. (3 miles) per hour 3 5 3 4 8 12 18
    Sampling and readings 2 2 2 2 2
    Walks at 4.8 km. (3 miles) per hour 3 5 8 12 18
    Sampling and readings 2 2 2 2 2
    Walks at 4.8 km. (3 miles) per hour 6 13 16
    Sampling and readings 2 2 2

    Table 2 - Duration and Sequence of Specific Activities For Test 2, in Minutes

    [42 CFR part 84, subpart H]

    Activity Service time -
    3 minutes 5 minutes 10 minutes 15 minutes 30 minutes 45 minutes 1 hour 2, 3 and 4 hours1
    Sampling and readings 2 2 2 2 2
    Walks at 4.8 km. (3 miles) per hour 1 1 3 4 6 10.
    Carries 23 kg. (50 pound) weight over overcast 1 time in 2 minutes 1 time in 2 minutes 2 times in 4 minutes 3 times in 6 minutes 4 times in 8 minutes 5 times in 10 minutes.
    Walks at 4.8 km. (3 miles) per hour 1 3 3 3 5.
    Climbs vertical treadmill2 (or equivalent) 1 1 1 1 1 1 1 1.
    Walks at 4.8 km. (3 miles) per hour 1 1 2 3 5
    Climbs vertical treadmill (or equivalent) 1 1 1 1.
    Sampling and readings 2 2 2 2.
    Walks at 4.8 km. (3 miles) per hour 2 2 3 5 11.
    Climbs vertical treadmill (or equivalent) 1 1 1 1 1.
    Carries 23 kg. (50 pound) weight over overcast 1 time in 2 minutes 3 times in 6 minutes 4 times in 8 minutes 5 times in 10 minutes 5 times in 10 minutes.
    Sampling and readings 2 2 2 2.
    Walks at 4.8 km. (3 miles) per hour 1 3 3 3
    Climbs vertical treadmill (or equivalent) 1 1 1 1 1 Then repeat above activities once.
    Walks at 4.8 km. (3 miles) per hour 2 2 3
    Climbs vertical treadmill (or equivalent) 1 1
    Carries 20 kg. (45 pound) weight and walks at 4.8 km. (3 miles) per hour 1 2
    Walks at 4.8 km. (3 miles) per hour 1 2 1 4
    Sampling and readings 2 2 2 2

    1 Total test time for Test 2 for 2-hour, 3-hour, and 4-hour apparatus is 2 hours.

    2 Treadmill shall be inclined 15° from vertical and operated at a speed of 1 foot per second.

    Table 3 - Duration and Sequence of Specific Activities For Test 3, in Minutes

    [42 CFR part 84, subpart H]

    Activity Service time -
    3 minutes 5 minutes 10 minutes 15 minutes 30 minutes 45 minutes 1 hour 2, 3 and 4 hours1
    Sampling and readings 2 2 2 2 (2)
    Walks at 4.8 km. (3 miles) per hour 1 1 2 2 3
    Runs at 9.7 km. (6 miles) per hour 1 1 1 1 1 1 1
    Pulls 20 kg. (45 pound) weight to 5 feet 15 times in 1 minute 30 times in 2 minutes 30 times in 2 minutes 30 times in 2 minutes 60 times in 6 minutes
    Lies on side 1/2 1 1 2 3 4 5
    Lies on back 1/2 1 1 2 2 3 3
    Crawls on hands and knees 1 1 1 2 2 2 2
    Sampling and readings 2 2 2 2
    Runs at 9.7 km. (6 miles) per hour 1 1 1 1
    Walks at 4.8 km. (3 miles) per hour 2 8 10
    Pulls 20 kg. (45 pound) weight to 5 feet 30 times in 2 minutes 60 times in 6 minutes 60 times in 6 minutes 60 times in 6 minutes
    Sampling and readings 2 2 2
    Walks at 4.8 km. (3 miles) per hour 1 3 4 10
    Lies on side 2 4
    Lies on back 2 1
    Sampling and readings 2 2 2

    1 Total test time for Test 3 for 2-hour, 3-hour, and 4-hour apparatus is 2 hours.

    2 Perform test No. 3 for 1 hr. apparatus; then perform test No. 1 for 1 hour apparatus.

    Table 4 - Duration and Sequence of Specific Activities for Test 4, in Minutes

    [42 CFR part 84, subpart H]

    Activity Service time -
    3 minutes 5 minutes 10 minutes 15 minutes 30 minutes 45 minutes 1 hour 2 hours 3 hours 4 hours
    Sampling and readings 2 2 2 2 (2) (3) (4)
    Walks at 4.8 km. (3 miles) per hour 1 2 2 2
    Climbs vertical treadmill1 (or equivalent) 1 1 1 1 1 1 1
    Walks at 4.8 km. (3 miles) per hour 1 1 1 2 2 2
    Pulls 20 kg. (45 pound) weight to 5 feet 30 times in 2 minutes 30 times in 2 minutes 30 times in 2 minutes 60 times in 5 minutes 60 times in 5 minutes 60 times in 5 minutes
    Walks at 4.8 km. (3 miles) per hour 1 1 1 2 3
    Carries 23 kg. (50 pound) weight over overcast 1 time in 1 minute 1 time in 1 minute 2 times in 3 minutes 4 times in 8 minutes
    Sampling and readings 2 2 2 2
    Walks at 4.8 km. (3 miles) per hour 1 3 3 4
    Runs at 9.7 km. (6 miles) per hour 1 1 1 1 1 1
    Carries 23 kg. (50 pound) weight over overcast 1 time in 1 minute 1 time in 1 minute 2 times in 3 minutes 4 times in 6 minutes 6 times in 9 minutes
    Pulls 20 kg (45 pound) weight to 5 feet 15 times in 1 minute 15 times in 1 minute 60 times in 5 minutes 30 times in 2 minutes 36 times in 3 minutes
    Sampling and readings 2 2 2 2
    Walks at 4.8 km. (3 miles) per hour 1 1 2 6
    Pulls 20 kg. (45 pound) weight to 5 feet 60 times in 5 minutes 60 times in 5 minutes
    Carries 20 kg. (45 pound) weight and walks at 4.8 km. (3 miles) per hour 3 3
    Sampling and readings 2 2

    1 Treadmill shall be inclined 15° from vertical and operated at a speed of 30 cm. (1 foot) per second.

    2 Perform test No. 1 for 30-minute apparatus; then perform test No. 4 for 1-hour apparatus; then perform test No. 1 for 30-minute apparatus.

    3 Perform test No. 1 for 1-hour apparatus; then perform test No. 4 for 1-hour apparatus; then perform test No. 1 for 1-hour apparatus.

    4 Perform test No. 1 for 1-hour apparatus; then perform test No. 4 for 1-hour apparatus; then perform test No. 1 for 1-hour apparatus twice (i.e., two one-hour tests).