AWWA B512-02
AWWA Standard for Sulfur Dioxide
standard by American Water Works Association, 08/01/2002
Full Description
This standard describes sulfur dioxide, a compressed, nonflammable liquified gas, for use in the treatment of municipal and industrial water supplies to remove excess residual chlorine. The sections on Inspection (5.1.2) and Notice of Nonconformance (5.4.4) have been revised to approved wording.