AS 4139-1993

Specifies the minimum requirements for pipes and fittings manufactured from fibre-reinforced concrete using standard curing, including autoclaving, for the conveyance of gravity flow supply water, stormwater, wastewater and sewage. Four classes of pipe are covered, distinguished on the basis of long-term design load: Class 1, Class 2, Class 3 and Class 4. Other classes of pipe may be designed using the principles described in this Standard.