813 / 1359
No measurement is perfect!
non-representative sampling
Personal bias
Finite resolution
etc….
Changes in influence quantities can affect the quality of measurements
GUM
5.2
In principle, the quantity to be measured
cannot be
completely
described without an
infinite
amount of
information.
How to know the “true value”?
ICRU 76
IAEA TRS398
Introduces concept of
uncertainty