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This specification establishes the design, performance, and marking requirements for manually operated valves in sizes = 4 used in plumbing systems.

1.1 This Standard covers aerobic bacterial generators intended for installation in septic tanks for restoring and preserving the soil?s ability to absorb, treat, and dispose of the effluent and specifies requirements for materials, physical characteristics, performance testing, and markings.

The purpose of this standard is to establish a generally acceptable performance standard for closet flange extenders. Its purpose is to serve as a guide for producers, distributors, architects, engineers, contractors, installers and inspectors; to promote understanding regarding materials, manufacture and installation; and to provide for identifying products that conform to this standard.

This Standard covers bedpan liner macerators and specifies requirements for materials, physical characteristics, performance testing, and markings.