This standard covers diatomaceous earth (DE), perlite, and other disposable filter materials used to precoat filters for water supply service application.
Content Provider
AWWA: American Water Works Association [awwa]
As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.
