| SI.N | Code book used (Description) | IS Code number |
|---|---|---|
| 1823 | Structured-Wall Plastics Piping Systems for Non-Pressure Drainage and Sewerage – Specification, Part 1: Pipes and Fittings with Smooth External Surface, Type A | IS 16098-1:2013 |
| 1824 | Structured-Wall Plastics Piping Systems for Non-Pressure Drainage and Sewerage – Specification, Part 2: Pipes and Fittings with Non-Smooth External Surface, Type B | IS 16098-2:2013 |
| 1825 | Handbook on Pipes and Fittings for Drinking Water Supply | SP 57:1993 |
