What is the primary difference between IS 3006 and IS 651 pipes?

IS 3006 applies to chemically resistant glazed stoneware pipes meant for highly corrosive effluents, whereas IS 651 applies to standard salt-glazed pipes used for normal domestic sewage.

What is the standard hydraulic test pressure for these pipes?

The pipes must withstand an internal hydraulic pressure of 0.15 MPa without any signs of leakage.

What is the permissible water absorption limit?

The water absorption should typically not exceed 4% of the dry weight to ensure chemical resistance.

IS 3006

: 1979

chemically resistant glazed stoneware pipes and fittings

CurrentSpecializedSpecificationBIMMEP · Sanitary Appliances and Water Fittings

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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

Quick Reference Values

hydraulic test pressure0.15 MPa (1.5 kg/cm²)

nominal diameters100 mm to 600 mm

maximum water absorption4%

acid resistance limitLoss in mass not exceeding 1.5%

alkali resistance limitNo visible signs of attack or deterioration

Practical Notes

Ensure that jointing materials and cements used with these pipes also possess equivalent chemical resistance.

Pipes must be carefully handled during transport and laying; hairline cracks can compromise their chemical resistance and integrity.

Refer to IS 4127 for the correct code of practice regarding laying and jointing of these stoneware pipes.