IS 3006:1979 is the Indian Standard (BIS) for chemically resistant glazed stoneware pipes and fittings. This standard lays down the requirements for chemically resistant glazed stoneware pipes and fittings used for the conveyance of highly corrosive industrial effluents and chemical sewage. It details the dimensions, tolerances, hydraulic limits, and specific chemical resistance testing methods required to ensure durability in aggressive environments.
chemically resistant glazed stoneware pipes and fittings
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Crushing Strength (100mm DN Pipe) | ≥ 2000 kg/m (~19.6 kN/m) | Varies by class; e.g., Normal Strength Class 120 requires ≥ 120 kN/m | BS EN 295-1:2013 |
| Water Absorption (Pipes >150mm DN) | ≤ 6.0% | ≤ 6.0% | BS EN 295-1:2013 |
| Water Absorption (all pipe sizes) | ≤ 8.0% (for ≤150mm DN); ≤ 6.0% (for >150mm DN) | ≤ 8.0% | ASTM C700-15(2020) |
| Glazing Requirement | Mandatory (internal and external salt or ceramic glaze) | Not mandatory if the pipe body meets all performance requirements | BS EN 295-1:2013 |
| Internal Hydraulic Pressure Test (Pipe Barrel) | Hold 1.4 kgf/cm² (~0.14 MPa) for 5 seconds without leakage | No specific barrel test; system joint watertightness is tested (e.g., 0.5 bar) | BS EN 295-1:2013 |
| Crushing Strength (150mm / 6-inch DN Pipe) | ≥ 2250 kg/m (~22.0 kN/m) | ≥ 2200 lbf/ft (~32.1 kN/m) for 'Extra Strength' class | ASTM C700-15(2020) |
| Chemical Resistance Test | Loss in mass ≤ 1.0% after immersion in specified acids | Surface must show resistance to acid and alkali attack per EN 295-3; pass/fail is visual/descriptive, not a mass loss %. | BS EN 295-1:2013 |