RT null T1 Dangerous goods and GHS classification system (Parts I, II and III) A1 United Nations Environment Programme, A1 International Council of Chemical Associations, YR 2017 FD 2017-06 LK https://wedocs.unep.org/handle/20.500.11822/20960 UL https://wedocs.unep.org/handle/20.500.11822/20960 NO Workshop presentation materials on Dangerous goods and GHS Classification Systems DS UN Environment Document Repository RD Sep 18, 2026