OpenLegislation

Division 8 Results of a collaborative study

United Kingdom

Original text. Later amendments are not shown.

A collaborative studyf1 was arranged in which 2 premixtures (samples 1 and 2) and 5 feeds (samples 3-7) were analysed by 12 laboratories. Duplicate analyses were performed on each sample. The results are given in the following table:

Content declared by manufacturer.

Feed prepared in the laboratory.

Sample 1Chicken premixSample 2Turkey premixSample 3Turkey pelletsSample 4Chicken crumbsSample 5Turkey FeedSample 6Poultry Feed ASample 7Poultry Feed B
L12121212121212
n23232323232323
Mean [mg/kg]5 05016 20076,578,492,948,332,6
sr [mg/kg]1074081,712,232,271,931,75
CVr [%]2,122,522,242,842,444,05,37
sR [mg/kg]2868833,857,325,293,473,49
CVR [%]5,665,455,039,345,697,1810,7
Nominal content [mg/kg]5 000f2 16 000 80 105 120 50f3 35
L

  • number of laboratories

    • n

  • number of single results

    • sr

  • standard deviation of repeatability

    • sR

  • standard deviation of reproducibility

    • CVr

  • coefficient of variation of repeatability, %

    • CVR

  • coefficient of variation of reproducibility, %.

    • Annotations

    Footnotes

    f1

    Analyst, 1995, 120, 2175-2180.

    f2

    Content declared by manufacturer.

    f3

    Feed prepared in the laboratory.