P.U.(A) 5/70
FACTORIES
AND MACHINERY (STEAM BOILER AND
UNFIRED PRESSURE VESSEL)
REGULATIONS, 1970
PART II - STEAM BOILERS
Regulation
42. Steam tests.
(1) Every steam boiler
inspected for the first time and every other steam boiler of which the
authorised safe working
pressure has been altered shall be tested under steaming conditions to
the satisfaction of the
Inspector.
(2) A steam boiler other
than a water tube steam boiler shall be tested with the safety valves set
at the authorised safe
working pressure under full steam and firing for at least ten minutes with
the feed water and the
stop valve closed. Where the accumulation of pressure during such test
exceeds ten per centum of
the authorised safe working pressure of the steam boiler the area of
the safety valves shall be
considered insufficient, and a certificate of fitness for that working
pressure shall not be
granted.
(3) When witnessing a
safety valve test an Inspector shall use the standard pressure gauge
supplied for his use
unless he is satisfied that the steam boiler pressure gauge is accurate.
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