370
a
SB
Oil
sdm
t
Up'
Ux
Uk'
U Xi
V
Wa
Wg
X
Standard deviation of a set of n > 30 results
Standard deviation of n < 30 analytical blank signals
Standard deviation of n > 30 analytical blank signals
Standard deviation of the mean
Time
Specific uncertainty of the mean of n > 30 results
Specific uncertainty of the mean of n < 30 results
Specific uncertainty of the value held as true
Specific uncertainty of an individual result
Variance (standard deviation squared)
Weight of analyte, expressed as required
Gravimetric weighing
Annex II
Arithmetic mean of n < 30 analytical results obtained by processing
n aliquots of the same sample in order to determine the same analyte
True value (an unreachable ideal)
Value held as true, obtained through special testing (interlaboratory
exercises)
Arithmetic mean of n signals from analytical blanks
Individual analytical result
Analytical signal at the limit of quantitation
Analytical signal at the limit of detection