| Activity | Unit | Labour | Material | ||
| Time standard
(hour) |
Skill | Quantity | Product | ||
| Installing water-pipe, in chase or in duct,
diameter below 2" |
lm | 0.46
0.46 |
plumber
labourer |
1.03 m | galvanized pipe |
| Installing gas-pipe, out of wall or in chase,
weld joints, tested, diameter below 2" |
lm | 0.58
0.58 |
plumber
labourer |
1.04 m
0.5 pcs |
(black) gaspipe
(gas)pipe bracket |
| Installing PVC drainage pipe, in chase
or in duct, diameter below 110 mm |
lm | 0.59
0.59 |
plumber
labourer |
0.85 m
0.5 pcs |
PVC drainage pipe
PVC bent pipe |
| Installing asbestos cement drain tube,
with O-ring joints, in chase or in duct, diameter: 50-100 mm |
lm | 0.35
0.35 |
plumber
labourer |
0.95 m
0.28 pcs 1.4 pcs |
asbestos cement tube
junction/inlet piece rubber O-ring |
| Installing internal stormwater drainpipe | lm | 0.43
0.43 |
plumber
labourer |
1.03 m | asbestos or
cast-iron tube |