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ARLINGTON, Va. - The Air-Conditioning and Refrigeration Institute (ARI) has issued a white paper titled "Noise Criteria Levels – What They Mean and What They Do Not Mean," which is available at www.ari.org.
Also available at the Web site, free of charge, is ARI Standard 885-98 (with 2002 Addendum), "Procedure for Estimating Occupied Space Sound Levels in the Application of Air Terminals and Air Outlets."
Publication date: 11/17/2003


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This overview of the benefits of zoning includes tips for selling to consumers and businesses. Tom Jackson discusses options for new construction and retrofit, as well as some ways a residential contractor can get into the light commercial business with zoning products. Speaker: Tom Jackson, CEO, Jackson Systems
With access to over one million professionals and more than 60 industry-specific publications, 




