NUREG-1537, Part 2 - NRC

CHAPTER 9
Waste Management," where design bases for the fifll range of reactor operations of Up
the HVAC system should be developed.
Areas of review should include the following:
* discussion of the characteristics and functions of the HVAC system if no
airborne radioactivity is present
* discussion of all sources of radioactive materials that could become
airborne during the full range of reactor operation, and'of the way the
HVAC system is designed to affect the distribution and concentration of
those materials
* features of the HVAC system designed to limit exposures of personnel to
radiation in the restricted area as a result of the full range of reactor
operation
* features of the HVAC system and associated reactor building designed to
prevent inadvertent or uncontrolled release of airborne radioactive material
to areas outside the reactor room and to the unrestricted environment
* modes of operation and features of the HVAC system designed to control
(contain or confine) reactor facility atmospheres, including damper closure <
or flow-diversion functions, during the full range of reactor operation
* features of the HVAC system that affect habitability and the working
environment in the reactor facility for personnel and equipment
* applicable technical specifications and their bases, including testing and
surveillance
Acceptance Citeria
The acceptance criteria for the information on the HVAC systems include the
following:
* The system design should ensure that temperature, relative humidity, and
air exchange rate (ventilation) are within the design-basis limits for
personnel and equipment
* The system design should address all normal sources of airborne
radioactive material and ensure that these sources are diluted, diverted, or
filtered so that occupational doses do not exceed the requirements of
NUREG-1537,PART2 9-2 REV 0,2/96
NUREG-1537,PART2 9-2 REV 0, 2/|96
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