IS 11925 : 1986 Specification for pitch-impregnated fibre pipes and fittings for drainage purposes

1 Scope

1.1 This standard covers materials, dimensions and methods oftesting of pitch impregnated fibre pipes and fittings in diametersranging from 50 to 200 mm for drainage purposes below and aboveground level.

1.1.1 The standard also covers perforated pipes of the samematerials for sub-surface drainage.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 5382 : 1969Specification for rubber sealing rings for gas mains,water mains and sewers