Tables - Basic Methods for the Biochemical Lab - page 207

8.2 Conversion Factors for SI Units

Table 8.2. Selected SI units

Quantity Unit Symbol Definition

= 1 s −1 Activity of Becquerel Bq 1 Bq

a radionuclide
Amount of substance

Mole mol (basic SI unit)

=

Electric charge Coulomb C 1 C 1 s × A

Electric current Ampere A (basic SI unit)

=

1 m 2 × kg × s −2 Energy Joule J 1 J

= s −1 Enzyme activity Katal kat 1 kat 1 mol ×

= 1 m × kg × s −2 Force Newton N 1 N

= 1 s −1 Frequency Hertz Hz 1 Hz

Length Meter m (basic SI unit)

Mass Kilogram kg (basic SI unit)

=

1 m 2 × kg × s −3

Power Watt W 1 W

=

1 m −1 s −2 Pressure Pascal Pa 1 Pa × kg ×

Temperature Kelvin K (basic SI unit)

Time Second s (basic SI unit)

Table 8.3. SI prefixes

Prefix Symbol Factor Prefix Symbol Factor

10 24 10 −1 yotta Y Deci d

10 21 10 −2

zetta Z Centi c

10 18 10 −3

exa E Milli m

10 15

µ

10 −6 peta P Micro

10 12 10 −9 tera T Nano n

10 9 10 −12 giga G Pico p

10 6 10 −15 mega M Femto f

10 3 10 −18 kilo k Atto a

10 2 10 −21 hecto h Zepto z

10 1 1 0 −24

deca da Yo c t o y