National Certification Schemes for Refrigeration and Air-conditioning Service Technicians: Examples of Strategies and Requirements for their Establishment and Operation

United Nations Environment Programme (2015-10-01)

It is expected that in the near future there will be a considerably higher uptake around the world, and particularly in developing countries of ‘alternative refrigerants’, such as hydrocarbons, ammonia, carbon dioxide, unsaturated hydrofluorocarbons (HFCs) –or hydrofluoroolefins (HFOs) and HFOs mixtures.

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