Free AS Standards AS 1172.4:2019 pdf free AS 1172.4:2019 pdf free.Sanitary plumbing products Part 4: Washbasins. 1.5.5 Waste outlet The waste outlet hole shall incorporate a flange recess that allows the installation of a waste fitting conforming with AS 1589 or AS 2887 such... 09-07-2021 Get More