RT null T1 Protocol for the Sampling of Water as a Core Matrix in the UNEP/GEF GMP2 Projects for the Analysis of PFOS - Component 2: Abiotic Samples A1 United Nations Environment Programme, K1 sampling K1 water YR 2017 FD 2017-01 LK https://wedocs.unep.org/handle/20.500.11822/21022 UL https://wedocs.unep.org/handle/20.500.11822/21022 DS UN Environment Document Repository RD Sep 23, 2026