Manual for Refrigeration Servicing Technicians - UNEP - Division of ...

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Refrigerant Management
Management:
Cylinder inspections and re-testing
The use of the various refrigerants in cylinders that are exposed to
the environment, is reason for concern, as previously discussed.
Although the interior of these cylinders must be void of moisture, the
exterior cannot avoid it. Thus, corrosion can and does occur, as well
as mechanical damage due to mishandling. These are but a few of
the reasons why the cylinders must be inspected and re-tested at
particular intervals. The intervals differ by country, but the date for
the next inspection or testing is usually indicated on the cylinder. It
should then be returned to the refrigerant supplier. Similarly, the valves
should be periodically examined, especially the relief valve. Check to
be sure that nothing is obstructing the relief valve and that no visual
deterioration or damage has occurred. If any damage is visible, empty
the cylinder and have the tank repaired. Never use a cylinder with a
faulty pressure-relief valve or with obvious structural impairments.
Elements of the refrigerant management strategy should include:
Refrigerant conservation 4
Refrigerant emissions 4
Containment 4
Refrigerant recovery and recycling 4
Identification of refrigerants 4
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