NMI P 101
Symbols for Units of Measurement
First Edition
Second Edition
Third Edition
Third edition, first revision
Third edition, second revision
Fourth edition
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Bradfield Road, Lindfield, NSW 2070
PO Box 264, Lindfield, NSW 2070
Telephone: (61 2) 8467 3600
Facsimile: (61 2) 8467 3610
Web page: http://www.measurement.gov.au
March 1981 (Document 110)
October 1987 (Document 110)
February 1993 (Document 110)
June 2001 (renamed NSC P 101)
July 2004 (renamed NMI P 101)
March 2009 (added units of volume and
unit price)
© Commonwealth of Australia 1981
The following symbols have been selected from the schedules of the National Measurement
Regulations for use in the marking of trade measuring instruments.
LENGTH
metre
centimetre
millimetre
MASS
tonne
kilogram
gram
milligram
metric carat
m
cm
mm
t
kg
g
mg
CM, ct
VISCOSITY
millipascal second
mPa.s
square millimetre per second mm²/s
AREA DENSITY
gram per square metre
g/m²
AREA
square metre
square decimetre
m²
dm²
VOLUME
cubic metre
megalitre
kilolitre
litre
decalitre
decilitre
centilitre
millilitre
m³
ML
kL
L
daL
dL
cL
mL
FREQUENCY
hertz
kilohertz
megahertz
Hz
kHz
MHz
TEMPERATURE
degree Celsius
Kelvin
ºC
K
PRESSURE
pascal
kilopascal
megapascal
Pa
kPa
MPa
TIME
hour
minute
second
h
min
s
UNIT PRICE
dollar per tonne
dollar per kilogram
dollar per gram
cent per kilogram
dollar per cubic metre
dollar per megalitre
dollar per kilolitre
dollar per litre
dollar per decilitre
dollar per centilitre
dollar per millilitre
cent per litre
$/t
$/kg
$/g
c/kg
$/m³
$/ML
$/kL
$/L
$/dL
$/cL
$/mL
c/L
DENSITY
kilogram per cubic metre
kilogram per litre
kg/m³
kg/L
FORCE
newton
kilonewton
N
kN
3/2009
ROTATIONAL FREQUENCY
revolution per second
r/s
revolution per minute
r/min
ELECTRICAL QUANTITIES
volt
V
ampere
A
ohm
Ω
watt
W
kilowatt hour
kW.h
1
FLOW RATE
cubic metre per hour
litre per minute
tonne per hour
m³/h
L/min
t/h
SPEED
kilometre per hour
metre per second
km/h
m/s
NMI P 101