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Requirements for Special Maintenance - doe-std-1128-98_ch10106
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DOE Standard Guide of Good Practices for Occupational Radiological Protection In Plutonium Facilities
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Personnel Decontamination - doe-std-1128-98_ch10108


DOE-STD-1128-98
condition should be changed without delay. Gloves that are not in use for the
remainder of that shift should be capped off with a glove cover or plastic bag.
Gloves not in sue should be stored inside the glove box in such a manner that
they do not interfere with operations.
4.3.4 Respiratory Protection
Respiratory protection should be readily available. Respiratory protective equipment
should be used for all bag-out operations, bag and glove changes, and any situation
involving a potential or actual breach of confinement. Alternatively, the operation
could be performed in a glovebag to maintain confinement. In any case, protection, in
the form of air-purifying or atmosphere-supplying respirators, should be considered
whenever concentrations of radionuclides in the air are likely to exceed 30% of the
Derived Air Concentration (DAC). For good performance, the respirator must fit
closely on the facial contours and make an impenetrable seal so that all air enters
through the filter or is supplied by the breathing-air supply. ANSI Z88.2-1992
(ANSI, 1980b) describes qualitative and quantitative tests that should be used to
ensure that the respirator fits the individual; only the quantitative test should be used
for verification of respirator fit at plutonium facilities. Respirator fit tests should be
performed annually.
The respiratory protective device selected should provide a protection factor
appropriate for the air concentration anticipated. ANSI Z88.2 provides protection
factors guidance.
Air-supplied hoods are becoming more popular because a fitting is not required and
facial hair does not prohibit their use. Protection factors greater than 1000 have been
determined with air-supplied hoods. All respirators, including air-supplied hoods,
require approval. While NIOSH approves most respirators, some respirator types in
use at DOE facilities are not part of the NIOSH testing program.
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