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  2. Carbon dioxide sensor - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide_sensor

    New developments include using microelectromechanical systems (MEMS) IR sources to bring down the costs of this sensor and to create smaller devices (for example for use in air conditioning applications). [3] Another method (Henry's Law) also can be used to measure the amount of dissolved CO 2 in a liquid, if the amount of foreign gases is ...

  3. TM44 inspections - Wikipedia

    en.wikipedia.org/wiki/TM44_inspections

    TM44 inspections, or Air Conditioning Energy Assessments (ACEA), are required by law in the United Kingdom under the Energy Performance of Buildings Regulations 2007, amended in 2011 and 2012. [1] They are designed to improve energy efficiency and reduce the carbon dioxide emissions of air conditioning systems. [ 2 ]

  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. Indoor air quality - Wikipedia

    en.wikipedia.org/wiki/Indoor_air_quality

    The National Institute for Occupational Safety and Health (NIOSH) considers that indoor air concentrations of carbon dioxide that exceed 1000 ppm are a marker suggesting inadequate ventilation. [91] The UK standards for schools say that carbon dioxide levels of 800 ppm or lower indicate that the room is well-ventilated. [92]

  6. Continuous emissions monitoring system - Wikipedia

    en.wikipedia.org/wiki/Continuous_emissions...

    CEM systems can also measure air flow, flue gas opacity and moisture. A monitoring system that measures particulate matter is referred to as a PEMS. In the U.S., the EPA requires a data acquisition and handling system to collect and report the data. Measurements of concentration can be converted to mass/hour by including flow rate measurements.

  7. I measured CO2 levels on a plane: It showed me when I was ...

    www.aol.com/lifestyle/took-co2-detector-flight...

    Air travel amid COVID outbreaks can be unnerving but a carbon dioxide detector can help gauge risks. Here's what a CO2 detector showed on a flight.

  8. Greenhouse gas monitoring - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_monitoring

    Carbon dioxide absorbs some of the radiation, allowing more radiation that passes through the reference cell to reach the detector than radiation passing through the sample cell. Data is collected on a strip chart recorder. The concentration of carbon dioxide in the sample is quantified by calibrating with a standard gas of known carbon dioxide ...

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