1. Tubing shall be extruded from linear low density polyethylene with a nominal 0.012m diameter (0.014m ID x 0.016m OD). The wall thickness of the tube shall not be less than 0.0011 m.2. The inside wall of the tube will be impregnated with 10, 3 m tributyl tin maleate to inhibit bacterial growth.3. There shall be turbulent flow path emitters inserted every 0.6 m inside the tube.4. The emitters shall be impregnated with TREFLAN to inhibit root penetration for a minimum of 10 years, which period will be guaranteed by the manufacturer.5. The tubing will be identified as being used for a non-potable purpose by means of two purple stripes permanently incorporated into the outside wall of the tube. Country:Pakistan
