ASSE International revises commercial dishwasher backflow requirements
ASSE 1004-2017: Performance Requirements for Commercial Dishwashing Machines has been designated as an American National Standard for the American National Standards Institute. The standard is now available for purchase.
ASSE 1004 applies to backflow prevention devices used on potable water supplies connected to commercial dishwashers. The backflow devices include atmospheric-type vacuum breakers complying with ASSE 1001, hose-connection vacuum breakers complying with ASSE 1011, pressure vacuum breakers complying with ASSE 1020, hose-connection backflow preventers complying with ASSE 1052, spill-resistant vacuum breakers complying with ASSE 1056 and air gaps.