procurement of flood fighting materials (geo-textile sheets) for water resources department for the year 2025-26 (zone-a). , supply of non-woven geo-textile fabric sheets of 300 gsm manufactured from 100% virgin polypropylene (pp) fibre with minimum properties as per is 16653: 2017 ? wide tensile strength (md) = 15kn/m & wide tensile strength (cd) = 15kn/m ? elongation (md) = 50% & elongation (cd) = 50% ? abrasion = 95% ? trapezoidal tear strength (md) = 340 n & trapezoidal tear strength (cd) = 340 n ? cbr puncture strength = 3000 n ? permittivity = 1.25 s-1 ? permeability = 60l/m2/sec ? aos = 75micron ? uv resistance @ 500 hours retained tensile strength (md) & (cd) = 80% ? mass = 300gm/m² ? thickness at 2kpa = 3 mm. (each roll of geo fabric sheet should be supplied in properly packed bundles and should be marked with the name of manufacturer, batch number & its dimensions clearly on each roll with “wrd govt. of assam” to be printed on it and mentioning properly the gsm and type of polymer and test certificate from approved nabl accredited and iso certified laboratory should invariably be submitted against each batch of material).