Indian Standard No. Title PIPES AND FITTINGS 1. General   IS 782 : 1979 Caulking lead (Third revision) IS 5382 : 1985 Rubber sealing rings for gas mains, water mains and sewers (First revision) IS 6837 : 1973 Three wheel type pipe cutter (First revision) IS 6843 : 1984 Technical supply conditions for pipe cutters (First revision) IS 6881 : 1973 Link type pipe cutters IS 10883 : 1984 Single Wheel type pipe cutters IS 11906 : 1986 Recommendations for cement-mortar lining for cast-iron, mild steel and ductile-iron pipes and fitting for transportation of water. IS 12820 : 1989 Dimensional requirements for rubber for mechanical joints ans brush for use with cast iron pipes water, gas and sewage.