jrc79301_report%20eu-rl%20pahs%20pt%20on%20chocolate%202012_ver11

µg/kg
Distribution of individual results of replicate determinations reported for the benz[a]anthracene
(BAA) content of the chocolate test sample.
Results are expressed on product basis (µg/kg chocolate).
blue triangles: individual results of replicate determinations, blue box: reported expanded measurement uncertainty (k=2), blue
horizontal line in blue box: average of replicate determinations, green dotted line: assigned value, green area around assigned
value: expanded uncertainty of the assigned value (k=2), red lines: lower and upper limit of satisfactory z-score range
4
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
Sample: Plain chocolate
Measurand BAA on product basis
No. of laboratories: 45
Limit of tolerance
Assigned value: 1.720 µg/kg (Reference value)
Target s.d.: 0.380 µg/kg (Reference value)
Range of tolerance: 0.960 - 2.480 µg/kg (|Z Score|