1.1
This Standard provides requirements for in-service examinations and positive pressure leakage-rate testing
of concrete containment structures of a containment system that are designated as class containment
components.
1.2
Periodic testing and inspection of other components and appurtenances of the containment system
designed in accordance with the CSA N285 series of Standards are beyond the scope of this Standard.
These are covered in CAN/CSA-N285.5.
1.3
In CSA Standards, “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; “may” is used to express an option or that which is permissible within the
limits of the standard; and “can” is used to express possibility or capability. 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.
CSA N287.7-08-2008 Referenced Document
CSA N287.2-2008 Material requirements for concrete containment structures for CANDU nuclear power plants (Fifth Edition)
CSA N287.7-08-2008 history
2008CSA N287.7-08-2008 In-service examination and testing requirements for concrete containment structures for CANDU nuclear power plants Fourth Edition