supply of pvc suction hose pipe under lalbagh (a-m) sub-division -supply of pvc suction hose pipe for maintenance of different rli schemes , supply and delivery of suction hose pipe , supply and delivery of 150mm dia nominal borepvc flexible suction and delivery hose pipe(heavy duty) id min 151mm, max 152.4mm, wall thickness min 7.5mm, max 8mm, pitch of spiral uniform with tolerance +/- 2% and reinforcement no 75 +/- 5 per mtr, col lelngth 20 mtr, color green or grey, hydro static proof/working pressure test 4kgf/sq cm at 27 +/- 2 degree celcius for 5 min, hydro static burst pressure test 8kgf/sq cm at 27 +/- 2 degree celcius for 1 min. resistance to vaccum 625mm of hg(approx), loss in mass on heating < 3% mass of the sample subject to heating at 130+/-3 degree celcius for a period of 3 hours (in m) latest amendments thereof is marked (is15265)