Precision data - vitamin K1

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EN 14148:


Table 1. Results of the interlaboratory tests, part 1.

 

UHT whole liquid milk,
non-fortified

Goat whole milk powder,
non-fortified

Milk-based infant formula
oil-filled, fortified

Whey-based infant formula,
partially oil-filled, fortified

Repeatability standard deviation s r, µg/100 g

0,04

0,21

5,00

1,54

Repeatability coefficient of variation, %

9,03

3,23

4,24

4,77

Repeatability limit r = [2,8 x s r], µg/100 g

0,12

0,60

14,01

4,31

Reproducibility standard deviation s R, µg/100 g

0,05

0,39

6,50

2,14

Reproducibility coefficient of variation, %

10,94

5,81

5,50

6,63

Reproducibility limit r = [2,8 x s R], µg/100 g

0,15

1,08

18,19

5,98

Results obtained in 1998.


Table 2. Results of the interlaboratory tests, part 2.

 

Soy-based infant formula,
oil-filled, fortified

Whey-based infant formula,
oil-filled, fortified

Whey-based infant formula,
partially oil-filled, fortified

NIST SRM 1846,
infant formula

Repeatability standard deviation s r, µg/100 g

2,04

2,54

4,04

5,38

Repeatability coefficient of variation, %

2,59

5,11

4,44

5,68

Repeatability limit r = [2,8 x s r], µg/100 g

5,71

7,11

11,32

15,05

Reproducibility standard deviation s R, µg/100 g

3,40

3,80

4,14

6,41

Reproducibility coefficient of variation, %

4,33

7,66

4,56

6,78

Reproducibility limit r = [2,8 x s R], µg/100 g

9,53

10,65

11,60

17,95

Results obtained in 1998.