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HFO-1234yf was developed by a team at DuPont, led by Barbara Haviland Minor, jointly with researchers at Honeywell. [8] [9] Their goal was to meet European directive 2006/40/EC, which went into effect in 2011 and required that all new car platforms for sale in Europe use a refrigerant in its AC system with a global warming potential (GWP) less than 150 times more potent than carbon dioxide.
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A DuPont R-134a refrigerant. A refrigerant is a working fluid used in cooling, heating or reverse cooling and heating of air conditioning systems and heat pumps where they undergo a repeated phase transition from a liquid to a gas and back again.
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It is best to check with your local store for its specific hours of operation on Dec. 24. UPS Express Critical is available 365 days a year, according to the company. For more information, call 1 ...
Sydney Sweeney hit back after body shamers piled on one of her Instagram posts, which included videos and photos of her hitting the gym to prepare for her role as boxer Christy Martin.
The 1964–65 daytime network television schedule for the three major English-language commercial broadcast networks in the United States covers the weekday daytime hours from September 1964 to August 1965.