Historical
IAPMO PS 95-2001
Drain, waste, and vent hangers and plastic pipe support hooks
Hangers covered by this Standard are intended for use in plumbing drain, waste and vent systems, plumbing CTS piping, and ABS DWV and PVC DWV piping systems. This Standard covers general requirements, performance requirements, along with markings and identification. This Standard strictly applies to hangers and plastic pipe support hooks used solely as supporting and/or suspending devices and not to pipe alignment and secondary support system.
International Association of Plumbing and Mechanical Officials [iapmo]