Division 10.1 Statistical results of the interlaboratory testF1
United Kingdom
The following data were obtained from an international method performance study carried out to internationally agreed procedures (1) (2).
| Year of interlaboratory test | 2000 |
| Number of laboratories | 18 |
| Number of samples | 6 |
| Samples | A | B | C | D | E | F |
|---|---|---|---|---|---|---|
| Number of laboratories retained after eliminating outliers | 16 | 18 | 18 | 14 | 18 | 18 |
| Number of outliers (laboratories) | 2 | 4 | ||||
| Number of accepted results | 32 | 36 | 36 | 28 | 36 | 36 |
| Mean value (mg/L) | 272* 241* | 30 | 591* 641* | 46 | 107 | 492 |
| Repeatability standard deviation, s r (mg/l) | 8,0 | 3,6 | 15,0 | 3,7 | 6,7 | 8,5 |
| Repeatability relative standard deviation, RSDr (%) | 3,1 | 11,8 | 2,4 | 8,0 | 6,2 | 1,7 |
| Repeatability limit, r (mg/l) | 23 | 10 | 42 | 10 | 19 | 24 |
| Reproducibility standard deviation, s R (mg/l) | 8,5 | 8,4 | 25,0 | 4,55 | 13,4 | 24,4 |
| Reproducibility relative standard deviation, RSD R (%) | 3,3 | 27,8 | 4,1 | 9,9 | 12,5 | 5,0 |
| Reproducibility limit, R (mg/l) | 24 | 23 | 70 | 13 | 38 | 68 |
Sample types:
A B C D E F
Plum spirit; split level *
Rum I; blind duplicates
Rum II; split level *
Slivovitz; blind duplicates
Brandy; blind duplicates
Marc spirit; blind duplicates.