When the Coppock Curve gets down to a very low level and then turns up, it signals an important long term entry point. Coppock was a money manager who wanted to find the really great long term buy signals, and was not so much interested smaller swings.
It is inserted in the apparatus set-up between the reaction container and the gas collection system. It is packed with a solid water absorbing drying agent e.g. anhydrous calcium chloride (not for ammonia), calcium oxide (not acidic gases like sulphur dioxide, carbon dioxide and chlorine), anhydrous sodium sulphate.
Ethylene oxide is still widely used by medical device manufacturers . Since ethylene oxide is explosive at concentrations above 3%, ethylene oxide was traditionally supplied with an inert carrier gas such as a CFC or HCFC. The use of CFCs or HCFCs as the carrier gas was banned because of concerns of ozone depletion.