tender for procurement of materials and disinfectants for various water supply schemes under kurseong division, phed, gta, phed, gta, 1 supplying hdpe (materials grade pe-100) pipes conforming to is 4984-1995 with latest revision & amendments if any with necessary hdpe specials including labour charges for earth work in excavation in any kind of soil including mixed soil with boulder,road sub-grade and aits flank but excluding moorum laterite or sand stone / hard rock cutting with chisel required including cutting road flank/ brick pavement etc. without damaging the exisiting telephone/electrical cable line etc.(in case of damage of any type of cable line by the agency at the time of execution necessary damage charge as applicable by the respective authority will have to be brone by the agency at his own cost)upto the depth (av.) so as to maintain 1.10m.earth cushion from top of the pipe upto g.l. including loading unloading carrying lowering. b) 110mm dia. (o.d.) (pn - 6.0 / pe 100) 2 c) 75mm dia. (o.d.) (pn - 6.0 / pe 100) 3 d) 50mm dia. (o.d.) (pn - 6.0 / pe 100) 4 e) 40mm dia. (o.d.) (pn - 6.0 / pe 100) 5 f) 25mm dia. (o.d.) (pn - 6.0 / pe 100) 6 labour for fitting & fixing high density polyethylene pipes or pvc for above ground work including cost of jointing materials paints etc fitting & fixing all necessary specials cutting pipes making threads cutting holes in walls ofr rc floor where necessary 7 mainding of damages...as per direction of eic (payement will be made on centerline measurement of the total pipeline including specials)110 mm dia 7 75 mm dia 8 50 mm dia 9 40 mm dia 10 25 mm dia 11 supply of g.i. specialsa) plain socket a) 150 mm dia 12 b) 100 mm dia 13 c) 80 mm dia 14 d) 50 mm dia 15 e) 40 mm dia 16 f) 25 mm dia 17 b) union socketa) 50 mm dia 18 b) 40 mm dia 19 c) 25 mm dia 20 c) flange (with holes) a) 150 mm dia 21 b) 100 mm dia 22 c) 80 mm dia 23 d) 50 mm dia 24 e) 40 mm dia 25 d) bend (all degree) a) 150 mm dia 26 b) 100 mm dia 27 c) 80 mm dia 28 d) 50 mm dia 29 e) 40 mm dia 30 f) 25 mm dia 31 e) nipple a)100 mm dia(300 mm long) 32 b) 100 mm dia (150 mm long) 33 c) 100 mm dia(100 mm long) 34 supply of other materials & disinfectantsa) rubber jute 35 b) jute 36 c) nut & bolt 37 d) g. i wire 38 e) alum 39 f) bleaching powder (in 25 kg bag) 40 gst 18% 41 l cess 1%