84.100—Man tests 1, 2, 3, and 4; requirements.
Man tests 1, 2, 3, and 4, set forth in Tables 1, 2, 3, and 4 of this subpart, respectively, prescribe the duration and sequence of specific activities. These tests will be conducted to—
(d)
Provide information on the operating and breathing characteristics of the apparatus during actual use.