IS 7888 covers salt-glazed stoneware pipes for sewerage and drainage. Stoneware is chemically inert (acid/alkali resistant) making it ideal for industrial effluent drainage. Being replaced by PVC/HDPE in modern construction but still specified for chemical resistance.
Specification for salt-glazed stoneware pipes and fittings for drainage and sewerage covering dimensions, strength, chemical resistance, and testing.
Key Values
Size range100-600mm
Water absorption max7%
Chemical resistanceResistant to all acids except HF
Practical Notes
! Stoneware pipes are brittle — handle with care during transport and laying.
! Excellent chemical resistance makes them ideal for laboratory and industrial drainage.
! Being replaced by HDPE (IS 14333) for most municipal sewerage due to higher strength and easier jointing.
! Joints traditionally used cement mortar — modern installations use rubber ring joints.