Aluminum sulfate and American Water Works Association standard for aluminum sulfate
Note:
Cover title., At head of title: American Water Works Association., "American national standard.", "Effective date: Oct. 1, 1993.", "First ed. approved by AWWA Board of Directors June 25, 1942. This ed. approved Jan. 31, 1993.", "Approved by American National Standards Institute, June 21, 1993.", and "ANSI/AWWA B403-93 (revision of ANSI/AWWA B403-88)."