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Company Writer's Guide
[For Illustration Only] B-13
Symbols for Units in General Use (Cont’d)
Unit Symbol Notes
milliliter mL See note for liter.
millimeter mm
conventional millimeter of
mercury
mmHg
1 mmHg = 133.322 Pa (deprecated,
see ANSI Z210.1-1976).
millimicron nm
Use of the name millimicron for the nanometer is
deprecated.
millipascal second mPas SI unit-multiple of dynamic viscosity.
millisecond ms
millivolt mV
milliwatt mW
minute (plane angle) ...
minute (time) min
Time may also be designated by means of
superscripts as in the following example:
9
h
46
m
30
s
.
mole mol SI unit of amount of substance.
month mo
nano n SI prefix for 10
-9
.
nanoampere nA
nanofarad nF
nanometer nm
nanosecond ns
nautical mile nmi 1 nmi = 1852 m
neper Np
newton N SI unit of force.
newton meter Nm