RT null T1 Responsible Jewellery Council K1 mercury YR 2009 FD 2009-06 LK https://wedocs.unep.org/handle/20.500.11822/12339 UL https://wedocs.unep.org/handle/20.500.11822/12339 NO Responsible Jewellery Council NO https://www.unep.org/chemicalsandwaste/Portals/9/Mercury/Documents/PartneshipsAreas/PartneshipsLetters/Responsible%20Jewellery%20Council.pdf DS UN Environment Document Repository RD Sep 22, 2026