| SI.N | Code book used (Description) | IS Code number |
|---|---|---|
| 1279 | Guidelines for rapid mixing devices | IS 7090:1985 |
| 1280 | Guidelines for flocculator devices | IS 7208:1992 |
| 1281 | Method for the Imhoff cone test | IS 7232:1974 |
| 1282 | Code of practice for domestic hot water installations | IS 7558:1974 |
| 1283 | Code of practice for the construction and maintenance of road gullies | IS 7740:1985 |
| 1284 | Requirements for biological treatment equipment, Part 1: Trickling filters | IS 8413-1:1977 |
| 1285 | Requirements for biological treatment end equipment, Part 2: Activated sludge process and its modifications | IS 8413-2:1982 |
| 1286 | Requirements for filtration equipment, Part 1: Filtration media – sand and gravel | IS 8419-1:1977 |
| 1287 | Requirements for rapid sand gravity filtration equipment, Part 2: Under-drainage system | IS 8419-2:1984 |
| 1288 | Hand Operated Augers for Cleaning Water-closets, Pipes and Sewers | IS 9110:1979 |
| 1289 | Recommendations for handling and dosing devices for chemicals for water treatment, Part I: Coagulants | IS 9222-1:1990 |
| 1290 | Requirements for sludge dewatering equipment, Part I: Sludge drying beds-sand, gravel and underdrains | IS 10037-1:1981 |
| 1291 | Requirements for sludge de-watering equipment, Part 2: Vacuum filtration equipment | IS 10037-2:1983 |
| 1292 | Requirements for sludge de-watering equipment, Part 3: Centrifugal equipment (Solid bowl type) | IS 10037-3:1983 |
| 1293 | Requirements for equipment for the Jackson candle turbidimeter and the determination of turbidity | IS 10053:1981 |
| 1294 | Requirements for settling tank (clarifier equipment) for wastewater treatment | IS 10261:1982 |
| 1295 | Requirements for settling tank (clarifier equipment) for a water treatment plant | IS 10313:1982 |
| 1296 | Glossary of terms relating to water supply and sanitation | IS 10446:1983 |
| 1297 | buckets to be used in the power-driven bucket-type sewer cleaning machine | IS 10552:1983 |
| 1298 | Requirements for chlorination equipment, Part I: General guidelines for chlorination plants, including handling, storage and safety of chlorine cylinders and drums | IS 10553-1:1983 |
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