Fluorinated gases pharmaceutical industries, as well as in refrigeration when combined with other gases. PFCs were commonly used as fire extinguishants in the past and are still found in older fire protection systems. They are also a by-product of the aluminium smelting process. Sulphur hexafluoride (SF) is used primarily as an insulation gas. It can be found in high-voltage switchgear and is used in the production of magnesium. HFCs were developed in the 1990s to substitute substances such as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs). As these substances were found to deplete the ozone layer, the Montreal Protocol lays down provisions for them
1987 (What the Fuck Is Going On?) in mint condition was worth £60, whereas a mint copy of "1987: The JAMs 45 Edits" was worth a mere £10. 1987 (What the Fuck Is Going On?) 1987 (What the Fuck Is Going On?) is the debut studio album by British electronic band The Justified Ancients of Mu Mu (the JAMs), later known as the KLF. "1987" was produced using extensive unauthorised samples that plagiarized a wide range of musical works, continuing a theme begun in the JAMs' debut single "All You Need Is Love". These samples provided a deliberately provocative backdrop for beatbox rhythms and cryptic, political raps.