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j) When the cylinders have been filled correctly and the
process completed, make sure that the cylinders and the
equipment are removed from site promptly and all isolation
valves on the equipment are closed off.
k) Recovered refrigerant shall not be charged into another
refrigeration system
unless it has been cleaned and checked.
10 LABELLING
Equipment shall be labelled stating that it has been de-
commissioned and emptied of refrigerant.The label shall
be dated and signed.
Ensure that there are labels on the equipment stating the
equipment contains flammable refrigerant.
11 RECOVERY
When removing refrigerant from a system, either for ser-
vicing or decommissioning, it is recommended good prac-
tice that all refrigerants are removed safely. When transfer-
ring refrigerant into cylinders, ensure that only appropriate
refrigerant recovery cylinders are employed. Ensure that
the correct number of cylinders for holding the total system
charge are available.All cylinders to be used are designated
for the recovered refrigerant and labelled for that refriger-
ant (i.e. special cylinders for the recovery of refrigerant).
Cylinders shall be complete with pressure relief valve and
associated shut-off valves in good working order. Empty re-
covery cylinders are evacuated and, if possible, cooled be-
fore recovery occurs.
The recovery equipment shall be in good working order
with a set of instructions concerning the equipment that is
at hand and shall be suitable for the recovery of flammable
refrigerants.In addition,a set of calibrated weighing scales
shall be available and in good working order. Hoses shall
be complete with leak-free disconnect couplings and in
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