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Section 608 (together with Section 609, which covers motor vehicles) of the Clean Air Act serves as the main form of occupational licensure for technicians in the heating, ventilation, and air conditioning (HVAC) industry in the United States. [1]
To aid in the study, AMCA sponsored research by the Battelle Memorial Institute to compare the test results using the pitot tube test methods and nozzle test methods. The result of this effort was a new revision of the test code, which was published in 1960 as AMCA Standard Test Code for Air Moving Devices, Bulletin 210. Standard 210 became ...
In 1996, EPA proposed updating the Federal Testing Procedures [17] to add a new higher-speed test (US06) and an air-conditioner-on test (SC03) to further improve the correlation of fuel economy and emission estimates with real-world reports. In December 2006 the updated testing methodology was finalized to be implemented in model year 2008 ...
It is a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant. In compliance with the Montreal Protocol, its manufacture was banned in developed countries (non-article 5 countries) in 1996, and in developing countries (Article 5 countries) in 2010 out of concerns about its damaging effect on the ozone layer. [5]
must hold a current, unrestricted practical/vocational nurse license in the United States or its territories and must have hospice and palliative licensed practical/vocational nursing practice of 500 hours in the most recent 12 months or 1000 hours in the most recent 24 months prior to applying for the examination. [58]
R-410A was invented and patented by Allied Signal (now Honeywell) in 1991. [5] Other producers around the world have been licensed to manufacture and sell R-410A. [6] R-410A was successfully commercialized in the air conditioning segment by a combined effort of Carrier Corporation, Emerson Climate Technologies, Inc., Copeland Scroll Compressors (a division of Emerson Electric Company), and ...
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