Biological field and laboratory methods for measuring the quality of ...
Biological field and laboratory methods for measuring the quality of ...
Biological field and laboratory methods for measuring the quality of ...
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2<br />
Six units have been adopted to serve as <strong>the</strong> base <strong>for</strong> <strong>the</strong> International System; *<br />
Length _- - meter<br />
Mass kilogram<br />
Time- - _- - . . __ . . _second<br />
Electric current. . . . __ ampere<br />
Thermodynamic temperature__ - - - _-- - - - - ______ kelvin<br />
Light intensity c<strong>and</strong>ela<br />
Some <strong>of</strong> <strong>the</strong> o<strong>the</strong>r more frequently used units <strong>of</strong> <strong>the</strong> SI <strong>and</strong> <strong>the</strong>ir symbols <strong>and</strong>, where<br />
applicable, <strong>the</strong>ir derivations are listed below.<br />
Plane angle<br />
Solid angle<br />
SUPPLEMENTARY UNITS<br />
Quantity Unit<br />
Area<br />
Volume<br />
Frequency<br />
Density<br />
Velocity<br />
Angular velocity<br />
Acceleration<br />
Angular acceleration<br />
Force<br />
Pressure<br />
Kinematic viscosity<br />
Dynamic viscosity<br />
Work, energy, quantity <strong>of</strong> heat<br />
Power<br />
Electric charge<br />
Voltage, potential difference,<br />
electromotive <strong>for</strong>ce<br />
Electric <strong>field</strong> strength<br />
Electric resistance<br />
Electric capacitance<br />
Magnetic flux<br />
Inductance<br />
Magnetic flux density<br />
Magnetic <strong>field</strong> strength<br />
Magnetomotive <strong>for</strong>ce<br />
Flux <strong>of</strong> light<br />
Luminance<br />
Illumination<br />
radian<br />
steradian<br />
* Recent (1971) qddition <strong>of</strong> <strong>the</strong><br />
substance brings <strong>the</strong> total to<br />
note on page 1.<br />
DERIVED UNITS<br />
square meter<br />
cubic meter<br />
hertz<br />
kilogram per cubic meter<br />
meter per second<br />
radian per second<br />
meter per second squared<br />
radian per second squared<br />
newton<br />
newton per square meter<br />
square meter per second<br />
newton-second per square meter<br />
joule<br />
watt<br />
coulomb<br />
volt<br />
volt per meter<br />
ohm<br />
farad<br />
weber<br />
henry<br />
tesla<br />
ampere per meter<br />
ampere<br />
lumen<br />
c<strong>and</strong>ela per square meter<br />
lux<br />
rad<br />
sr<br />
Symbol<br />
m 2<br />
rna<br />
Hz<br />
kg/m 3<br />
m/s<br />
rad/s<br />
m/s 2<br />
rad/s 2<br />
N<br />
N/m 2<br />
m 2 /s<br />
Nos/m 2<br />
J<br />
W<br />
C<br />
V<br />
Vim<br />
n<br />
F<br />
Wb<br />
H<br />
T<br />
A/m<br />
A<br />
1m<br />
cd/m 2<br />
Ix<br />
Derivation<br />
(kg 0 m/s2 )<br />
(Nom)<br />
(3 Is)<br />
(A·s)<br />
(W/A)<br />
(VIA)<br />
(A 's/V)<br />
(V's)<br />
(V's/A)<br />
(Wb/m 2 )<br />
(cd·sr)<br />
mole as <strong>the</strong> unit <strong>for</strong> amount <strong>of</strong><br />
seven units. See asterisked foot-
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