![]() ![]() An American National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. American National Standard An American National Standard implies a consensus of those substantially concerned with its scope and provisions. The action becomes effective on the first day of the month following the month of Journal AWWA publication of the official notice. ![]() When AWWA revises or withdraws this standard, an official notice of action will be placed on the first page of the classified advertising section of Journal AWWA. AWWA standards are intended to represent a consensus of the water supply industry that the product described will provide satisfactory service. The use of AWWA standards is entirely voluntary. AWWA publication of a standard does not constitute endorsement of any product or product type, nor does AWWA test, certify, or approve any product. Until each optional feature is specified by the user, the product or service is not fully defined. The AWWA standards usually contain options that must be evaluated by the user of the standard. AWWA standards describe minimum requirements and do not contain all of the engineering and administrative information normally contained in specifications. 2, AMERICAN WATER WORKS ASSOCIATION 6666 West Quincy Avenue, Denver, Colorado 80235ΔΆ AWWA Standard This document is an American Water Works Association standard. 27, This edition approved June 15, Approved by American National Standards Institute Dec. 1, First edition (AWWA C506) approved by AWWA Board of Directors Jan. 1 American Water Works Association ANSI/AWWA C (Revision of ANSI/AWWA C510-92) R AWWA STANDARD FOR DOUBLE CHECK VALVE BACKFLOW PREVENTION ASSEMBLY Effective date: Feb.
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