RT null T1 Refrigerant Identifier Video Series: Guidance on how to identify refrigerants using a refrigerant identifier A1 United Nations Environment Programme, K1 refrigeration K1 ozone YR 2018 FD 2018 LK https://wedocs.unep.org/handle/20.500.11822/27134 UL https://wedocs.unep.org/handle/20.500.11822/27134 NO Guidance on how to identify refrigerants using a refrigerant identifier DS UN Environment Document Repository RD Sep 16, 2026