Agriculture Reference
In-Depth Information
Table 7.15
(continued)
Unit
Definition
Value in metric unit
milligram (mg)
1,000 mg
=
1g
1mg
quintal
100 kg
=
1 quintal
100 kg
tonne (t)
1,000 kg
=
1 t
1,000 kg
pound (lb)
Basic measure
0.454 kg
ounce (oz)
16 oz
=
1 lb
28.375 g
grain
437.5 grain
=
1 ounce
64.86 mg
ton
2,240 lb
=
1 ton
1,016 kg
hundredweight (cwt)
112 lb
=
1 cwt.
50.80 kg
stone
14 lb
=
1 stone
6.35 kg
Fo rc e
dyne
10
−
5
100,000 dyne
=
1N
N
newton (N)
Basic measure
1 N
9.81 N
=
1 kg-wt
kilogram-weight (kg-wt)
9.81 N
poundal (pdl)
Basic measure
0.1383 N
Pressure/stress
newton per sq m (N/m
2
)
Basic measure
1 N/m
2
pascal (pa)
1 N/m
2
=
1pa
1pa
kilopascal (kpa)
1,000 pa
=
1 kpa
1 kpa
megapascal (Mpa)
106 pa
=
1 Mpa
1 Mpa
newton/sq mm (N/mm
2
)
1 Mpa
=
1 N/mm
2
1 Mpa
kg per sq cm (kg/cm
2
)
Basic unit
0.0981 N/mm
2
tonne per sq m (t/m
2
)
10 t/m
2
=
1 kg/cm
2
0.00981 N/mm
2
pound per sq inch (psi)
Basic measure
0.0703 kg/cm
2
Energy
joule (J)
Basic measure
1 J
watt-hour
3,600 J
=
1 W-hour
3,600 J
kilowatt-hour
3,600 kJ
=
1 kilowatt-hour
3.6
×
106 J
calorie
4.19 J
=
1 calorie
4.19 J
Power
watt (W)
1 J/s
=
1W
1W
kilowatt (kW)
1,000 W
=
1kW
1kW
megawatt (MW)
1,000 kW
=
1MW
1MW
horse power (hp)
746 W
=
1 hp
0.746 kW
volt-ampere (VA)
1 VA
=
1W
1W
kilovolt-ampere (kVA)
1,000 VA
=
1kVA
1kW
Electric conductance
mho
1 A/V
=
1 mho
1 S
siemens (S)
1 A/V
=
1S
1S
milli-siemens (mS)
1,000 mS
=
1S
1mS
deci-siemens (dS)
10 dS
=
1S
1dS
Electric current
ampere (A)
1 C/s
=
1A
1A
kiloampere (kA)
1,000 A
=
1kA
1kA
Electric tension/potential
volt (V)
Basic unit
1 V
millivolt (mV)
1,000 mV
=
1V
1mV
Search WWH ::
Custom Search