IS 7181 : 1986 SPECIFIC AT ION FOR HORIZONTALLY CAST IRON DOUBLE FLANGED PIPES FOR WATER, GAS AND SEWAGE UDC 621.643.2 - 986 [669.13] MTD 6
Reaffirmed 2019
1. Scope
1.1 This standard covers the reuirements for double flanged cast iron pipes of Class B only 1tp to D.N 750 for pressure main lines of water, gas and sewage manufactured by horizontal castings in sand moulds.