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ASSE Standard #1035-2008 (Download)

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Performance Requirements for Laboratory Faucet Backflow Preventers (ANSI Approved - September 2009)

These devices are designed to protect the potable water supply from pollutants or contaminants that enter the system by backflow due to backsiphonage or backpressure. This standard applies only to devices classified as backflow preventers designed for installation on laboratory faucets on the discharge side of the last shut-off valve. They are not for use under constant pressure conditions. These devices consist of two independently acting check valves, force loaded or biased to a normally closed position and between the check valves a means for automatically venting to atmosphere, force loaded or biased normally open position.


THERE IS AN ERRATA SHEET ISSUED FOR THIS STANDARD.
Visit www.asse-plumbing.org/downloads/errata.html to view and download.

Products downloaded are not to be reproduced or distributed in any way.

A hard copy version of this standard is also available. 

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