HWI-TEST HWI has established an in-house Test and Certification Division to provide cleanroom testing services to meet the testing requirements of the International Standards Organization (ISO). We maintain an inventory of state-of-the-art test equipment, including particle counters, aerosol photometers and POA (poly-alpha-olefin) aerosol generators, Shortridge pressure, velocity and flow measuring instruments. We also maintain an inventory of NIST-traceable temperature, relative humidity and pressure calibration standards. SERVICES We provide the full range of cleanroom cleanliness testing to the current ISO Standard 146-44-1. We provide the full range of air flow measurement, analysis and balancing services with instruments certified up to 5,000 feet-per-minute velocity. We provide the full range of water-flow measurement, analysis and balancing services for chilled-water and glycol cooling systems. We provide the full range of instrument field calibration services for temperature, relative humidity and differential pressure sensors, transmitters and manometer gauges.
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