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 Refer to the following
specifications:
ASTM E144 - 94
British Standards BS 4791 - 1985
The CAL2k vessels have a built in firing counter which
monitors how many determinations a vessel has done. The vessel must be inspected
after 5000 firings.
At 4000 firings an alarm is activated to indicate that the
vessel will need inspection soon. The vessel can still be used in this mode.
At 5000 firings the vessel is de-activated and no longer be
used. The vessel must be sent to DDS for inspection. If the vessel is found not
to require reconditioning then the counter is reset for another 1000 firings. If
the threads are badly worn then the vessel must be reconditioned. After the
reconditioning a vessel can be used for another 5000 firings.
The last 2 reconditioning dates are stored in the vessel.
The reconditioning dates and firing counter can be read from
the CAL2k calorimeter menu of from the PC software.
BS 4791 states that the maximum time between inspections is
4 years so if a vessel has not been reconditioned in the past 4 years it should
be returned to DDS for inspection.
Reconditioning procedure:
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