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Page 20 of 29
B  790
(g) radioactive sources of minimum strength for the required task are
used ;
(h)  special shielded containers are used to store and transport radioactive
sources ;
(i) the transport index of each radioactive source is conspicuously
displayed or tagged on the container ;
(j)  personal dosimeters are issued to and worn by radiation personnel
and be evaluated on monthly basis ;
(k)  recommended dose levels by the NNRA, IAEA and the International
Commission on Radiation Protection are complied with, but in general, the
annual dose level in the case of —
(i)   average exposure of radiological personnel over a five year period
shall not exceed 20mSv per annum, and annual exposure shall not exceed
50mSv (25uSv per hour for 2000-hour exposure per year), and
(ii) non-radiological personnel (the public) shall not exceed 100mr
(1mSv) per year ; and
(l) where a tool containing a radioactive source is missing it shall be
promptly reported to the Authority with details.
27.  A manager shall ensure that —
(a) safety signs are prominently displayed to provide awareness, caution
and direction, such as areas of “No Smoking”, ‘’high noise’’, ‘’exit’’, and
‘’muster point’’ ;
(b) relevant information of emergency contact and numbers such as
nearby emergency firefighting outfits are also displayed ; and
(c) appropriate hazard communication channels are developed, such as
use of posters, bulletins, slogans and jingles.
28.  A manager shall ensure that the use of internal combustion engines
in an area classified as highly flammable is prohibited unless adequate
precautionary measures have been taken to prevent fire or explosion.
29.  A manager shall ensure that a management system manual is made
available for every offshore operation which specifies the —
(a) share of responsibilities between marine crew and processing crew ;
(b) lines of command in an emergency ;
(c) share of responsibilities between offshore organisation and onshore
base organisation ;
(d)  inter-field responsibilities and communications
(e)  scheme for risk analysis, system for implementation and follow up
of results ;
Signages
Restriction
of use of
internal
combustion
engine
Offshore
operations