Aluminum sulfate 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." "ANSI/AWWA B403-93 (revision of ANSI/AWWA B403-88)."