ASME A112.3.4 pdf download Plumbing fixtures with pumped waste and macerating toilet systems 1 Scope 1.1 This Standard establishes physical, performance, and testing requirements applicable to plumbing fixtures with pumped waste, macerating toilet systems, and related components. Such systems are intended to collect waste from a single fixture such as a water closet, lavatory, shower, or bathtub and pump these...