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

6
Safe Refrigerant Handling
The compounds that result under these circumstances always
include hydrofluoric acid. If the compound contains chlorine,
hydrochloric acid will also be formed, and if a source of water, (or
oxygen), is present, a smaller amount of phosgene will be formed.
Halogen acids have a very sharp, stinging effect on the nose and
if they are detected, the area should be evacuated until the air has
been cleared of decomposition products.
Important safety procedures
Before working with a refrigerant, information and appropriate rules of
conduct should be sought:
• Personnel who handle refrigerants should be properly trained in
their safe use and handling.
• Personnel should have reviewed the material safety data sheet
(MSDS) for the refrigerant used.
• Personnel must not smoke, braze, or weld when refrigerant
vapour is present. Refrigerants can either ignite, or decompose
to produce harmful, corrosive and toxic substances when
exposed to an open flame or hot surface.
There are a number of aspects that technicians should always be aware of
whilst handling refrigerants.
Personal protection 4
Ensuring a safe work area 4
Safe working with a system 4
Handling refrigerant cylinders 4
127