The Air-Conditioning and Refrigeration Institute (ARI) has released a new equipment performance standard: "ARI Standard 260-2001 Sound Rating of Ducted Air Moving and Conditioning Equipment." ARI standards establish rating criteria and procedures for measuring and certifying product performance. In this way, products are rated on a uniform basis so that buyers and users can properly make selections for specific applications.

The purpose of Standard 260-2001 is to establish a method of sound rating the indoor portions of ducted air moving and conditioning equipment and to provide definitions; requirements for acquiring mapped sound data; sound power level calculations and ratings; minimum data requirements for published sound ratings; and conformance conditions.

This and 20 other standards are available for free download on ARI's website, www.ari.org.

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