News & Updates
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Cleaning Outdoor Air for Improved IAQ
The United States Environmental Protection Agency uses six “criteria pollutants” as indicators of outdoor air quality, and has established for each of them a maximum concentration above which adverse effects on human health may occur. Of the six pollutants, ground-level ozone (O3, commonly called smog) has been suggested as being the most widespread health threat.
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ISA Environmental Classifications: Changes and New Requirements
More than 25 years since its original publication, one of the most widely used industrial standards for the protection of electronic equipment, ISA-S71.04-1985, was updated and approved as an American National Standard in 2013. This revision was prompted due to reliability issues manufacturers have been experiencing since the passage and implementation of a number of
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Purafil Featured in the April Edition of Chemical Engineering
Our Technical Director, Chris Muller, wrote an in-depth feature article in the April issue of Chemical Engineering. The article discusses gas-phase filtration media properties and what is important to know. Click here to read the full article. More about Purafil’s Technical Director, Chris Muller: He is an expert on environmental air quality and gas-phase air
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Causes of Corrosion and Corrosion Monitoring
Introduction In industrial environments, there are numerous environmental factors which can cause corrosion of circuit boards in electronic process measurement and control systems. Among these are temperature, humidity, and gaseous pollutants. Of these, gaseous pollutants are the most destructive. Gaseous pollution today is caused primarily by the burning of fuels in power plants, factories, commercial
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