ArgonAcetyleneAmmoniaButaneBorontrichlorideCarbon DioxideCarbon MonoxideChlorineChlordifluromethane R 22DeuteriumEthaneEthyleneEthylene Oxide HeliumHelium 3Hexafluroethane R 116HydrogenHydrogen Bromide Hydrogen ChlorideHydrogen SulphideIso butaneIso butyleneKryptonMethane NeonNitric OxideNitrogenNitrous OxideOxygenPropaneSilaneSilicon tetra fluorideSulphur DioxideSulphur HexafluorideTetrafluromethane R 14Trifluromethane R 23Xenon