42 C.F.R. § 84.306

Current through September 30, 2024
Section 84.306 - Wearability test requirements
(a) NIOSH will conduct the wearability test on a total of three of the units submitted for approval. Three human subjects (two males and one female), one subject per unit, will conduct the test. The three subjects will range in height and weight as follows: One subject of height [GREATER THAN EQUAL TO]174 cm and weight [GREATER THAN EQUAL TO]90 kg; one subject of either 163 cm [LESS THAN EQUAL TO]height [LESS THAN]174 cm, regardless of weight, or 72 kg [GREATER THAN EQUAL TO]weight [LESS THAN]90 kg, regardless of height; and one subject of height [LESS THAN]163 cm and weight [LESS THAN]72 kg. All units tested must meet all conditions specified in this section to receive approval.
(b) NIOSH will evaluate the ease and speed with which users can don the CCER, as follows:
(1) Each test subject will be provided with manufacturer instructions, and must be able to don the CCER correctly, isolating the lungs within 30 seconds; and
(2) A CCER must not include any design, construction, or material characteristic that can be anticipated or demonstrated, under plausible conditions, to hinder the user in the correct and timely donning of the CCER.
(c) NIOSH will continuously monitor CCER use by each test subject during the activities specified in Table 4 to evaluate the ability of the CCER to provide an adequate and uninterrupted breathing supply, including but not limited to the requirements of § 84.303(b) , without harming or hindering a user. NIOSH will not approve a CCER if the use of any unit during these activities indicates any potential for the CCER to harm or hinder the user or to fail to provide an adequate and uninterrupted breathing supply to the user during reasonably anticipated conditions and activities of an escape.

Table 4-Wearability Test Requirements

ActivityMinimum duration
Sitting1 minute.
Stooped walking1 minute.
Crawling1 minute.
Lying on left side1 minute.
Lying on right side1 minute.
Lying on back1 minute.
Bending over to touch toes1 minute.
Turning head from side to side1 minute (at least 10 times).
Nodding head up and down1 minute (at least 10 times).
Climbing steps or a laddermill1 minute (1 step/second).
Carrying 50-lb bag on treadmill at 5 kph1 minute.
Lifting 20-lb weight from floor to an upright position1 minute (at least 10 times).
Running on treadmill at 10 kph1 minute.

42 C.F.R. §84.306