326-327 / 1143
Conclusion
The impact of imperfect proof testing can
have significant impact on the designed risk reduction requirements
and the suitability of the defined proof testing method when the C
PT
is
not considered.
The application of C
PT
should be applied
to all projects involving a SIS as early as practicable.
Where C
PT
is not available either
due to equipment not yet selected
or equipment not certified, using a
systematic approach as discussed
in the paper will be beneficial
Summary