IS 14402:1996 is the Indian Standard (BIS) for grp pipes joints and fittings for use in sewerage, industrial waste and water (other than potable). This standard specifies the requirements for Glass Reinforced Plastic (GRP) pipes, joints, and fittings intended for conveying sewerage, industrial waste, and non-potable water. It covers materials, manufacturing processes, dimensions, physical and mechanical properties, performance requirements, and testing methods.
GRP pipes joints and fittings for use in sewerage, industrial waste and water (other than potable)
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Stiffness Classes | SN 2500, 5000, 10000 (in N/m²) | SN 2500, 5000, 10000 (in N/m²) | ISO 10467 / EN 14364 |
| Long-term Strength Basis | 50-year extrapolated stress determined by regression analysis (Annex D) | 50-year extrapolated stress determined by regression analysis (e.g., per ISO 10928) | ISO 10467 |
| Degree of Cure Test (QC) | Barcol Hardness: min 90% of manufacturer's specified value | Barcol Hardness: min 90% of value specified by resin manufacturer | ASTM D3262 |
| Joint Angular Deflection (DN 300 mm) | 3.0 degrees without leakage | Typically 2.0 - 3.0 degrees without leakage, depending on joint design | EN 14364 |
| Chemical Resistance Test Medium (Strain Corrosion) | 1.0 N Sulphuric Acid (H₂SO₄) | 1 N Sulphuric Acid (H₂SO₄) | ISO 10467 |
| Initial Strain for Strain Corrosion Test | Varies with stiffness class (e.g., 3.0% deflection for SN 5000) | Determined by a formula based on pipe properties, often resulting in a strain of 0.6% to 1.0% | ISO 10467 |