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  2. Air Movement and Control Association - Wikipedia

    en.wikipedia.org/wiki/Air_Movement_and_Control...

    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 ...

  3. Top 100 Contractors of the U.S. federal government - Wikipedia

    en.wikipedia.org/wiki/Top_100_Contractors_of_the...

    With $48.666 billion in business with the U.S. federal government, Lockheed Martin, based in Bethesda, Maryland, is the largest U.S. federal government contractor. The Top 100 Contractors Report (TCR 100) is a list developed annually by the General Services Administration as part of its tracking of U.S. federal government procurement.

  4. Testing, adjusting, balancing - Wikipedia

    en.wikipedia.org/wiki/Testing,_adjusting,_balancing

    In heating, ventilation, and air conditioning (HVAC), testing, adjusting and balancing (TAB) are the three major steps used to achieve proper operation of heating, ventilation, and air conditioning systems. TAB usually refers to commercial building construction and the specialized contractors who employ personnel that perform this service.

  5. Emcor - Wikipedia

    en.wikipedia.org/wiki/Emcor

    HVAC commercial and industrial mechanical contractor [17] 12 March 2017: CCI Mechanical Mechanical service and design-build contractor for the commercial, industrial, and data center markets headquartered in Salt Lake City [18] 13 August 2021: Quebe Holdings Electrical services company [19] 14 February 2025: Miller Electric $865 million

  6. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    Air conditioning equipment will reduce the absolute humidity of the air processed by the system if the surface of the evaporator coil is significantly cooler than the dew point of the surrounding air. An air conditioner designed for an occupied space will typically achieve a 30% to 60% relative humidity in the occupied space.

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