16.1.2 A description of the aerosol, the instrumentation, and methods that should be
used to measure the penetration of the aerosol into the breathing zone of the
suit tester is given in 12.1.2 through 12.1.7.
16.1.3 A length of breathing air hose should be used, and all of the three suit testers
should be tested. The length of the breathing air hose should be adequate to
permit the carrying-out of the procedure described in 16.2.
16.1.4 The suit tester, wearing the supplied-air suit upon entering the test chamber,
should connect the breathing air hose to a fitting located inside the chamber
that is connected to a source of air. The suit tester, upon entering the test
chamber, also should connect the tubing from the probe inside the helmet of
the supplied-air suit to a fitting that is connected to the aerosol detection
16.1.5 The test operator should adjust the rate of flow of air going to the supplied-air
suit worn by the suit tester to the minimum airflow rate value specified by the
DOE contractor. The test operator should check the operation of the aerosol-
monitoring equipment and make any necessary adjustments.
16.2.1 The suit tester should walk at a normal pace away from the point where the
breathing air hose of the suit is connected to a fitting located inside the
chamber. The suit tester should continue to walk until stopped by the limited
length of the breathing air hose. The suit tester should stand still, while
keeping a steady tension on the taut breathing air hose, for at least 120 sec (2
min) or until the penetration of aerosol into the supplied-air suit helmet
shows no further increase.
16.2.2 The test operator should determine the average of the peak aerosol penetration
values, which occurred while the suit tester kept a steady tension on the taut
breathing air hose, and record this value.
16.2.3 The strength of the connection of the breathing air hose to the supplied-air suit
should be acceptable if the average peak penetration of the aerosol into the
helmet in the breathing zone of the suit tester, which occurred while the suit
tester maintained a steady tension on the taut breathing air hose, does not
exceed 0.02 percent.
Test Equipment and Requirements
17.1.1 The level of noise generated by the flow of air into the helmet of a supplied-
air suit should be less than 80 dBA when measured within three inches of the
test subject's ear while the supplied-air suit is worn following the DOE
contractor's instructions, with the shortest length of breathing air hose
permitted, and with minimum and maximum air volumes permitted.