air; (f) surgical tool gas; dioxide; mixtures of the gases in paragraphs (a) to (g); waste; means a protective material or membrane substance that is applied to a roof covering to provide waterproofing; means the removal, minor tap repairs reinstallation or replacement of tap handles, bonnets, spindles, tap washers, O-rings, or body washers but does not include— repair or replacement of any tap, mixer tap cartridge, breech, outlet or ceramic disc spindle; or work on a thermostatic mixing valve, a tempering valve or a backflow prevention device; has the same meaning as network utility operator it has in AS/NZS 3500.0; means the Plumbing Code of Australia PCA within the meaning of Part 12A of the Building Act 1993; means water collected directly from rainwater roof run-off;
air; (f) surgical tool gas; dioxide; mixtures of the gases in paragraphs (a) to (g); waste; membrane means a protective material or substance that is applied to a roof covering to provide waterproofing; minor tap repairs means the removal, reinstallation or replacement of tap handles, bonnets, spindles, tap washers, O-rings, or body washers but does not include— repair or replacement of any tap, mixer tap cartridge, breech, outlet or ceramic disc spindle; or work on a thermostatic mixing valve, a tempering valve or a backflow prevention device; network utility operator has the same meaning as it has in AS/NZS 3500.0; PCA means the Plumbing Code of Australia within the meaning of Part 12A of the Building Act 1993; rainwater means water collected directly from roof run-off;