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13.2 Reference
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13.2.5 SI Prefix
Unit
Reading
Meaning of Unit
Size
E
Exa
X10
18
Large
P
Peta
X10
15
T
Tera
X10
12
G
Giga
X10
9
M
Mega
X10
6
k
Kilo
X10
3
m
Milli
X10
-3
μ
Micro
X10
-6
n
Nano
X10
-9
p
Pico
X10
-12
f
Femto
X10
-15
a
Atto
X10
-18
z
Zepto
X10
-21
Small
The SI prefix may be used to express numeric values in scaling (see
4.3.8), a variable (see 4.3.9), and to input upper and lower limits for value
comparison (see 5.5.3,). Depending on the setting range limits, some
prefixes below may not be used.