DRAINAGE FIXTURE UNIT
All of the piping within a public or private premises that conveys sewage, rainwater or other liquid wastes to a point ofÂ disposal. A drainage system does not include the mains of public sewer systems or a private or public sewage treatment or disposal plant.
ESSENTIALLY NONTOXIC TRANSFER FLUIDS
Fluids having a Gosselin rating of 1, including propylene glycol; mineral oil; polydimethylsiloxane;Â hydrochlorofluorocarbon, chlorofluorocarbon and hydrofluorocarbon refrigerants; and FDA-approved boiler water additives for steam boilers.
ESSENTIALLY TOXIC TRANSFER FLUIDS