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Chlorodifluoromethane (R-22 or HCFC-22), a type of Freon. [9] [10] Dichlorodifluoromethane (R-12 or CFC-12), the most commonly used Freon brand refrigerant prior to its ban in many countries in 1996 and total ban in 2010. 1,1,1,2-Tetrafluoroethane (R-134a or HFC-134a), one of the main replacements for the formerly widespread R-12.
Maryland is the sole U.S. state to entirely ban flamethrowers. Possessing and/or using a flamethrower in Maryland is punishable by a US$ 250,000 fine and/or up to 25 years imprisonment. [ 10 ] Flamethrowers are also heavily restricted in California, but permits may be acquired for their use in limited circumstances, primarily in the production ...
R-410A. R-410A is a refrigerant used in air conditioning and heat pump applications. It is a zeotropic but near- azeotropic mixture of difluoromethane (CH 2 F 2, called R-32) and pentafluoroethane (CHF 2 CF 3, called R-125). R-410A is sold under the trademarked names AZ-20, EcoFluor R410, Forane 410A, Genetron R410A, Puron, and Suva 410A.
Reclaiming R-410A can reduce lifecycle greenhouse gas emissions by up to 70% compared to producing virgin refrigerant. Maximizing refrigerant reclamation to serve ACHP equipment in U.S. homes can avoid 7.7 metric tons of CO2 emissions by 2045–equivalent to taking 1.8 million cars off the road for a year.
Refrigerant. A refrigerant is a working fluid used in the refrigeration cycle of air conditioning systems and heat pumps where in most cases they undergo a repeated phase transition from a liquid to a gas and back again. Refrigerants are heavily regulated because of their toxicity and flammability [ 1 ] and the contribution of CFC and HCFC ...
California End of Life Option Act is a law enacted in June 2016 by the California State Legislature which allows terminally ill adult residents in the state of California to access medical aid in dying by self-administering lethal drugs, provided specific circumstances are met. [ 1 ] The law was signed in by California governor Jerry Brown in ...
California's Asian American population is estimated at 7.1 million, constituting a third of the nation's total. California's Native American population of 504,000 is the most of any state, with 103,030 identifying as Non-Hispanic and belonging mostly to the Indigenous peoples of California.
The second automotive air conditioning refrigerant invented was R-134a. R-134a is a hydrofluorocarbon refrigerant that contains fluorine and hydrogen. The successor to R-12, R-134a was a new refrigerant that no longer contained chlorine that could deplete the ozone layer. R-134a is a greenhouse gas, it has a lower global warming potential than ...