74—Design and construction of capsules and source holders
(1) A capsule must be
designed and constructed so that any radioactive material within the capsule
remains effectively enclosed within the capsule—
(a)
during all the conditions that are likely to arise when the source is being
put to its normal use; and
(b)
during all the conditions that are likely to arise if the source is involved
in an accident of a kind that could arise when the source is being put to its
normal use.
(2) For the purposes
of this regulation, a capsule complies with the requirements of
subregulation (1) if it complies with—
(a) in
the case of a capsule for a source built before
1 January 2012—the requirements of International Standard
ISO 2919:1999 (E) Radiation protection – sealed radioactive
sources – General requirements and classification published by the
International Organisation for Standardisation as in force from time to time;
or
(b) in
any other case—the requirements of the International Standard
ISO 2919:2012 (E) Radiological protection – sealed radioactive
sources – General requirements and classification published by the
International Organisation for Standardisation as in force from time to time,
as those requirements relate to the usage to which the sealed radioactive
source is to be put, as expressed in Table 4 of that standard.
(3) Subregulation (1)
does not apply in relation to a capsule if—
(a) the
capsule is contained in a device in respect of which a relevant code applies;
and
(b) the
device is compliant with the relevant code.