Sentences with hydrochlorofluorocarbon
- The United States joined Argentina, Brazil, Iceland, Mauritania and Norway on Wednesday in notifying the Ozone Secretariat of the United Nations Environment Program that they want to negotiate an accelerated phaseout of hydrochlorofluorocarbons, or HCFC’s, at an international conference in Montreal in September.
- Many CFCs have been replaced with related materials known as hydrochlorofluorocarbons which reportedly do not interfere with the ozone layer.
- Blowing agents such as chlorofluorocarbons, and to a lesser extent hydrochlorofluorocarbons, have been identified with the destruction of the earth's protective ozone layer.
- In the 1970s it was established that CFCs were eroding the earth's ozone layer, and since then they have gradually been replaced by less harmful chemicals such as hydrochlorofluorocarbons and butane.
- The hydrochlorofluorocarbons, or HCFC's, used today are a significant improvement.
- Although chlorofluorocarbons are no longer used by the insulation industry, closed-cell materials are typically blown into place with hydrochlorofluorocarbons, which are also ozone destroying.
- HFC32 is a hydrochlorofluorocarbon that is efficient and has no global warming impact.
- Allied Signal uses it to manufacture hydrochlorofluorocarbon refrigerants in its plant in El Segundo.