Draft Details

1.1 Application

This Standard addresses the design and execution of a nuclear air-cleaning system testing programs.

Notes:

1) The operating organization is responsible for determining the applicability and suitability of this Standard in consultation with the AHJ.

2) Nuclear facilities that typically use this standard consist of certain Class I nuclear facilities.

3) Parts of this Standard could also be relevant to the design and execution of a nuclear air-cleaning system testing program for

a) Class II nuclear facilities;

b) institutions operating under the authority of a Nuclear Substances and Radiation Devices licence;

c) facilities that use or store naturally-occurring radioactive materials; and

d) waste nuclear substance licensees.

1.2 Facility lifecycle

This Standard addresses nuclear air-cleaning system testing performed during commissioning, operation, and decommissioning of the facility.

1.3 Emissions covered under this Standard

This Standard provides information on testing of nuclear air-cleaning systems that remove radioactive particulate matter and iodine species from emissions streams.

1.4 Operating conditions

This Standard provides guidance for the design and execution of a testing program for nuclear air-cleaning systems used for

a) normal operation;

b) emergency operation;

c) operation following upset, maintenance, engineering, or procedural changes with the potential to affect system performance; and

d) operation following engineering changes that might affect system performance.

Note: Any release resulting from a deviation from routine operational practice that is expected to occur once or several times during the operating lifetime of a nuclear facility or licensed activity (i.e., reasonably foreseeable upset events, also known as anticipated operational occurrences, including leaks or spills) is considered part of normal operation.

1.5 Qualifications of staff

This Standard provides guidance in the training and qualifications of staff performing the following tasks:

a) testing;

b) designing or reviewing a testing program for a nuclear air-cleaning system; and

c) training staff to perform testing on nuclear air-cleaning systems and to administer a testing program.

1.6 Exclusions

1.6.1 Environmental and emissions monitoring

Equipment in a nuclear air-cleaning system which is installed specifically for the collection and quantification of airborne substances (e.g., in emissions and environmental monitoring programs) or for the mitigation of non-radioactive hazardous substances is excluded from testing programs conforming to this Standard. For the design and execution of environmental, and effluent and emissions monitoring programs, refer to CSA N288.4 and CSA N288.5, respectively.

1.6.2 Testing of process off-gas treatment systems

This Standard does not apply to nuclear air-cleaning systems that are designed to abate noble gases, tritium, or carbon-14 releases.

1.7 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.