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  2. Portable emissions measurement system - Wikipedia

    en.wikipedia.org/wiki/Portable_emissions...

    A CATI PEMS being strapped down inside a vehicle. A portable emissions measurement system (PEMS) is a vehicle emissions testing device that is small and light enough to be carried inside or moved with a motor vehicle that is being driven during testing, rather than on the stationary rollers of a dynamometer that only simulates real-world driving.

  3. Fume extractor (soldering) - Wikipedia

    en.wikipedia.org/wiki/Fume_extractor_(soldering)

    Fumes generated by soldering A woman at a bench working in front of a filtration system A fume extractor is a device used to filter aerosolized chemical byproducts of the soldering process. [ 1 ] These devices take many forms depending on the project size and application, from small ductwork to entire fume hoods. [ 2 ]

  4. Welding - Wikipedia

    en.wikipedia.org/wiki/Welding

    Local exhaust ventilation (LEV) solutions remove fumes, smoke, and dust directly from the welding area. Forms of LEV include downdraft benches, fume hoods, and fume extraction welding guns. Downdraft benches have exhaust ducks beneath the metal welding table. Fume extraction guns have a vacuum hose that runs down to the welding nozzle. Movable ...

  5. Oxy-fuel welding and cutting - Wikipedia

    en.wikipedia.org/wiki/Oxy-fuel_welding_and_cutting

    In oxy-fuel welding, a welding torch is used to weld metals. Welding metal results when two pieces are heated to a temperature that produces a shared pool of molten metal. The molten pool is generally supplied with additional metal called filler. Filler material selection depends upon the metals to be welded.

  6. Vehicle emissions control - Wikipedia

    en.wikipedia.org/wiki/Vehicle_emissions_control

    By 1964, most new cars sold in the U.S. were so equipped, and PCV quickly became standard equipment on all vehicles worldwide. [ 3 ] The first legislated exhaust (tailpipe) emission standards were promulgated by the State of California for 1966 model year for cars sold in that state, followed by the United States as a whole in model year 1968.

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