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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.
File:COVID-19 Vaccination Record Card CDC (8-17-2020).pdf. Size of this JPG preview of this PDF file: 710 × 599 pixels. Other resolutions: 284 × 240 pixels | 569 × 480 pixels | 725 × 612 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file ...
A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...
Download as PDF; Printable version; Appearance. move to sidebar hide. This is a list of refrigerants, sorted by their ASHRAE-designated numbers, commonly known as R ...
“Most importantly, she has given us a space,” James said, using her hands to point to the synagogue and its standing room only crowd. “This space. Where we can be safe. Where we can be free
Google has entered into an agreement with Berkshire Hathaway electric utility NV Energy to power its Nevada data centers with advanced geothermal electricity, the U.S. technology company said on ...
R-454B, also known by the trademarked names Opteon XL41, Solstice 454B, and Puron Advance, is a zeotropic blend of 68.9 percent difluoromethane (R-32), a hydrofluorocarbon, and 31.1 percent 2,3,3,3-tetrafluoropropene (R-1234yf), a hydrofluoroolefin. [1] Because of its reduced global warming potential (GWP), R-454B is intended to be an ...
List of ongoing armed conflicts. Map of ongoing armed conflicts (number of combat-related deaths in current or previous year): Major wars (10,000 or more) Wars (1,000–9,999) Minor conflicts (100–999) Skirmishes and clashes (1–99) The following is a list of ongoing armed conflicts that are taking place around the world.