The following units of measurement a are applicable in ADR:
Measurement of |
SI Unit b |
Acceptable alternative unit |
Relationship between units |
|
Length
Area
Volume
Time
Mass
Mass density
Temperature
Temperature difference
Force
Pressure
Stress
Work
Energy
Quantity of heat
Power
Kinematic viscosity
Dynamic viscosity
Activity
Dose equivalent
|
m (metre)
m2 (square metre)
m3 (cubic metre)
s (second)
kg (kilogram)
kg/m3
K (kelvin)
K (kelvin)
N (newton)
Pa (pascal)
N/m2
J (joule)
W (watt)
m2/s
Pa.s
Bq (becquerel)
Sv (sievert)
|
--
-
l c (litre)
min (minute)
h (hour)
d (day)
g (gram)
t (ton)
kg/l
°C (degree Celsius)
°C (degree Celsius)
-
bar (bar)
N/mm2
kWh (kilowatt hours)
eV (electronvolt)
-
mm2/s
mPa.s
|
-
-
1 l = 10-3 m3
1 min = 60 s
1 h = 3 600 s
1 d = 86 400 s
1g = 10-3 kg
1 t = 103 kg
1 kg/l = 103 kg/m3
0 °C = 273.15 K
1 °C = 1 K
1 N = 1 kg.m/s2
1 Pa = 1 N/m2
1 bar = 105 Pa
1 N/mm2 = 1 MPa
1 kWh = 3.6 MJ
1 J = 1 N.m = 1 W.s
1 eV = 0.1602 Η 10-18J
1 W = 1 J/s = 1 N.m/s
1 mm2/s = 10-6 m2/s
1 mPa.s = 10-3 Pa.s
|
a The following round figures are applicable for the conversion of the units hitherto used into SI Units. |
||||||
Force |
Stress |
|||||
1 kg |
= |
9.807 N |
1 kg/mm2 |
= |
9.807 N/mm2 |
|
1 N |
= |
0.102 kg |
1 N/mm2 |
= |
0.102 kg/mm2 |
|
Pressure |
||||||
1 Pa |
= |
1 N/m2 |
= |
10-5 bar |
= |
1.02 10-5 kg/cm2 = 0.75 10-2 torr |
1 bar |
= |
105 Pa |
= |
1.02 kg/cm2 |
= |
750 torr |
1 kg/cm2 |
= |
9.807 104 Pa |
= |
0.9807 bar |
= |
736 torr |
1 torr |
= |
1.33 102 Pa |
= |
1.33 10-3 bar |
= |
1.36 10-3 kg/cm2 |
Energy, Work, Quantity of heat |
||||||
1 J |
= |
1 N.m |
= |
0.278 10-6 kWh |
= |
0.102 kgm = 0.239 10-3 kcal |
1 kWh |
= |
3.6 106 J |
= |
367 103 kgm |
= |
860 kcal |
1 kgm |
= |
9.807 J |
= |
2.72 10-6 kWh |
= |
2.34 10-3 kcal |
1 kcal |
= |
4.19 103 J |
= |
1.16 10-3 kWh |
= |
427 kgm |
Power |
Kinematic viscosity |
|||||
1 W |
= |
0.102 kgm/s |
= |
0.86 kcal/h |
1 m2/s = 104 St (Stokes) |
|
1 kgm/s |
= |
9.807 W |
= |
8.43 kcal/h |
1 St = 10-4 m2/s |
|
1 kcal/h |
= |
1.16 W |
= |
0.119 kgm/s |
||
Dynamic viscosity |
||||||
1 Pa.s |
= |
1 N.s/m2 |
= |
10 P (poise) |
= |
0.102 kg.s/m2 |
1 P |
= |
0.1 Pa.s |
= |
0.1 N.s/m2 |
= |
1.02 10-2 kg.s/m2 |
1 kg.s/m2 |
= |
9.807 Pa.s |
= |
9.807 N.s/m2 |
= |
98.07 P |
The decimal multiples and sub-multiples of a unit may be formed by prefixes or symbols, having the following meanings, placed before the name or symbol of the unit:
Factor |
Prefix |
Symbol |
||
1 000 000 000 000 000 000 1 000 000 000 000 000 1 000 000 000 000 1 000 000 000 1 000 000 1 000 100 10 0.1 0.01 0.001
0.000 001 0.000 000 000 001 0.000 000 000 000 001 0.000 000 000 000 000 001 |
= 1018 = 1015 = 1012 = 109 = 106 = 103 = 102 = 101 = 10-1 = 10-2 = 10-3 = 10-6 = 10-9 = 10-12 = 10-15 = 10-18 |
quintillion quadrillion trillion billion million thousand hundred ten tenth hundredth thousandth millionth billionth trillionth quadrillionth quintillionth |
exa peta tera giga mega kilo hecto deca deci centi milli micro nano pico femto atto |
E
k
|
NOTE: 109 billion is United Nations usage in English. By analogy, so is 10-9 = 1 billionth.
Records of training received according to this Chapter shall be kept by the employer and made