AS 2280-1991

Specifies requirements for ductile iron pressure pipes and fittings of nominal sizes up to and including DN 750. Pipes are classified according to wall thickness and designated K9 and K12, and these designations are consistent with ISO 2531. Outside diameter designations and lengths are consistent with AS 2544. Previous amendments are incorporated and the Standard includes rationalized displacements of fittings to provide cost benefits.