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 )