{"data":{"id":"us/42-cfr-tables-to-subpart-h-of-part-84","jurisdiction":"us","citation":"42 CFR Tables to Subpart H of Part 84","heading":"Tables to Subpart H of Part 84","body":"Table 1—Duration and Sequence of Specific Activities for Test 1, in Minutes\n[42 CFR part 84, subpart H]\nActivity Service time—\n3 minutes 5 minutes 10 minutes 15 minutes 30 minutes 45 minutes 1 hour 2, 3, and 4 hours\nSampling and readings 2 2 2 2 Perform 1 hour test 2, 3, or 4 times respectively.\nWalks at 4.8 km. (3 miles) per hour 3 5 3 4 8 12 18\nSampling and readings 2 2 2 2 2\nWalks at 4.8 km. (3 miles) per hour 3 5 8 12 18\nSampling and readings 2 2 2 2 2\nWalks at 4.8 km. (3 miles) per hour 6 13 16\nSampling and readings 2 2 2\nTable 2—Duration and Sequence of Specific Activities For Test 2, in Minutes\n[42 CFR part 84, subpart H]\nActivity Service time—\n3 minutes 5 minutes 10 minutes 15 minutes 30 minutes 45 minutes 1 hour 2, 3 and 4 hours 1\nSampling and readings 2 2 2 2 2\nWalks at 4.8 km. (3 miles) per hour 1 1 3 4 6 10.\nCarries 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.\nWalks at 4.8 km. (3 miles) per hour 1 3 3 3 5.\nClimbs vertical treadmill 2 (or equivalent) 1 1 1 1 1 1 1 1.\nWalks at 4.8 km. (3 miles) per hour 1 1 2 3 5\nClimbs vertical treadmill (or equivalent) 1 1 1 1.\nSampling and readings 2 2 2 2.\nWalks at 4.8 km. (3 miles) per hour 2 2 3 5 11.\nClimbs vertical treadmill (or equivalent) 1 1 1 1 1.\nCarries 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.\nSampling and readings 2 2 2 2.\nWalks at 4.8 km. (3 miles) per hour 1 3 3 3\nClimbs vertical treadmill (or equivalent) 1 1 1 1 1 Then repeat above activities once.\nWalks at 4.8 km. (3 miles) per hour 2 2 3\nClimbs vertical treadmill (or equivalent) 1 1\nCarries 20 kg. (45 pound) weight and walks at 4.8 km. (3 miles) per hour 1 2\nWalks at 4.8 km. (3 miles) per hour 1 2 1 4\nSampling and readings 2 2 2 2\n1 Total test time for Test 2 for 2-hour, 3-hour, and 4-hour apparatus is 2 hours.\n2 Treadmill shall be inclined 15° from vertical and operated at a speed of 1 foot per second.\nTable 3—Duration and Sequence of Specific Activities For Test 3, in Minutes\n[42 CFR part 84, subpart H]\nActivity Service time—\n3 minutes 5 minutes 10 minutes 15 minutes 30 minutes 45 minutes 1 hour 2, 3 and 4 hours 1\nSampling and readings 2 2 2 2 (2)\nWalks at 4.8 km. (3 miles) per hour 1 1 2 2 3\nRuns at 9.7 km. (6 miles) per hour 1 1 1 1 1 1 1\nPulls 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\nLies on side 1/2 1 1 2 3 4 5\nLies on back 1/2 1 1 2 2 3 3\nCrawls on hands and knees 1 1 1 2 2 2 2\nSampling and readings 2 2 2 2\nRuns at 9.7 km. (6 miles) per hour 1 1 1 1\nWalks at 4.8 km. (3 miles) per hour 2 8 10\nPulls 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\nSampling and readings 2 2 2\nWalks at 4.8 km. (3 miles) per hour 1 3 4 10\nLies on side 2 4\nLies on back 2 1\nSampling and readings 2 2 2\n1 Total test time for Test 3 for 2-hour, 3-hour, and 4-hour apparatus is 2 hours.\n2 Perform test No. 3 for 1 hr. apparatus; then perform test No. 1 for 1 hour apparatus.\nTable 4—Duration and Sequence of Specific Activities for Test 4, in Minutes\n[42 CFR part 84, subpart H]\nActivity Service time—\n3 minutes 5 minutes 10 minutes 15 minutes 30 minutes 45 minutes 1 hour 2 hours 3 hours 4 hours\nSampling and readings 2 2 2 2 (2) (3) (4)\nWalks at 4.8 km. (3 miles) per hour 1 2 2 2\nClimbs vertical treadmill 1 (or equivalent) 1 1 1 1 1 1 1\nWalks at 4.8 km. (3 miles) per hour 1 1 1 2 2 2\nPulls 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\nWalks at 4.8 km. (3 miles) per hour 1 1 1 2 3\nCarries 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\nSampling and readings 2 2 2 2\nWalks at 4.8 km. (3 miles) per hour 1 3 3 4\nRuns at 9.7 km. (6 miles) per hour 1 1 1 1 1 1\nCarries 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\nPulls 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\nSampling and readings 2 2 2 2\nWalks at 4.8 km. (3 miles) per hour 1 1 2 6\nPulls 20 kg. (45 pound) weight to 5 feet 60 times in 5 minutes 60 times in 5 minutes\nCarries 20 kg. (45 pound) weight and walks at 4.8 km. (3 miles) per hour 3 3\nSampling and readings 2 2\n1 Treadmill shall be inclined 15° from vertical and operated at a speed of 30 cm. (1 foot) per second.\n2 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.\n3 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.\n4 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).","path":["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"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-42.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:11Z","sha256":"14f255a4aae6cc3d5bc4228a56eab44eebcaa3e457b6fa99e09ef1f04631818e","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-84.104","next":"us/42-cfr-84.110"},"notice":"GroundRules: Original legal text. Not legal advice."}