Costing and Estimation ofWorks - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 154

Table 7.1 (continued)
Sr. No.

Item specifications Unit of work Required man-days

Unskilled Semi-skilled Skilled

7-49 Fixing of kitchen or lab sink of approved make with CI brackets duly painted, 40 mm waste

coupling, brass chain with rubber plug, and 40 mm waste pipe, including cutting and
making good the wall and the floor

10 nos. 4 4

7-50 Water supply installation works

Fixing of GI pipes (internal work) with GI fittings and MS clamps, including cutting and
making good the wall and the floors, when the pipe is of diameter:
(a) 15-32 mm 100 m 10 5

(b) 40-80 mm 100 m 12 6

7-51 Fixing of GI pipes (external work) with GI fittings, including trenching and refilling earth, etc.

(a) 15-32 mm bore 5 3

(b) 40-80 mm bore 6 4

(c) 100-125 mm dia. nominal bore 9 5

7-52 Making connection of GI distribution branch with GI main including all fittings

(a) Up to 25 mm dia. 10 nos. 3 3

(b) More than 25 mm up to 100 mm dia. 10 nos. 4 4

7-53 Fixing water meter and stopcock in GI pipeline, including making chamber of approved size 10 nos. 4 4

7-54 Fixing of pillar cocks, bib-cocks, stopcocks, etc. on inlet connection or connection pipe 15 nos. 1 1

7-55 Fixing of ball cock, full-way valve or wheel valve of approved make, or check valve or

non-return valve, oxidised gas taps, chromium-plated swan-necked cocks, and spouts

10 nos. 1 1

7-56 Fixing of precast RCC water storage tank with RCC cover 25 mm thick and 15 cm long GI

overflow pipe, including making connections, etc., size 340 l or 270 l:
(a) Hoisting at 1 m ht 5 nos. 1 1

(b) Hoisting on first floor 5 nos. 5 1

(c) Hoisting on second floor 5 nos. 8 1

7-57 Fixing of PVC storage tank of approved make with a 25 mm diameter 1 m long GI overflow

pipe and 25 cm long washout pipe with plug and socket, including making connections etc.
after hoisting to first floor:
(a) Up to 1,000 l capacity 5 nos. 10 1