"ANSI/AWWA C205-12 (revision of ANSI/AWWA C205-07)."
"Effective date: June 1, 2012. First edition approved by AWWA Board of Directors June 26, 1941. This edition approved Jan. 22, 2012. Approved by American National Standards Institute Feb. 23, 2012."
At head of title: AWWA standard
Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries