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BIS-ISI-CERTIFICATE

IS 3989: 2009

Centrifugally cast (Spun) iron spigot and socket soil, waste, ventilating and rainwater pipes, fittings and accessories

Centrifugally cast (Spun) iron spigot and socket soil, waste, ventilating and rainwater pipes, fittings and accessories
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1. Summary about Centrifugally Cast (Spun) Iron Spigot and Socket Soil, Waste, Ventilating and Rainwater Pipes, Fittings and Accessories

These pipes and fittings are designed for gravity-based drainage systems including soil, waste, ventilation, and rainwater disposal in buildings. Spigot and socket joints provide secure alignment and installation.


2. Why BIS Certificate is Mandatory for Centrifugally Cast (Spun) Iron Spigot and Socket Pipes

BIS certification is mandatory to ensure dimensional accuracy, joint integrity, and corrosion resistance. Substandard products can cause leakage, blockage, and structural damage.


3. What is BIS Certified for Centrifugally Cast (Spun) Iron Spigot and Socket Pipes

BIS certification verifies compliance with Indian Standards covering material quality, dimensions, joint performance, and protective coatings.


Tests required for Centrifugally Cast (Spun) Iron Spigot and Socket Pipes

TitleMandatory/Optional
Material

Required

Freedom from Defects

Required

Hardness

Required

Rubber joints

Required

Hammer test

Required

Hydrostatic test

Required

Sizes/ Dimensions & Tolerances

Required

Coating test

Required


4. Benefits of BIS Certification for Centrifugally Cast (Spun) Iron Spigot and Socket Pipes

  • Ensures leak-free drainage systems
  • Mandatory for building and municipal projects
  • Improves durability and corrosion resistance
  • Reduces maintenance and replacement costs
  • Enhances contractor and authority confidence

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