2015.14 Vitamin B (July 2018)

2015.14 (JULY 2018) BVit-02 AOAC_Edit_Riboflavin_Tot_MLT- AOAC_BlindDup_4044755861

FOR ERP USE ONLY DO NOT DISTRIBUTE

AOAC International Interlaboratory Study Workbook

Version:

2.1

Blind (Unpaired) Replicates Study Reported Values

Seq.

Item

Symbol

Value

AOAC 2015.14 Simultaneous Determination of Total Vitamins B1, B2,

Study name: Study date: Sample ID:

24-Jul-2018

4044755861 - NSRB999/JSDT587

1 Total number of laboratories 2 Total number of replicates

p

8

Sum(n(L)) XBARBAR

16

3 Overall mean of all data (grand mean) 4 Repeatability standard deviation 5 Reproducibility standard deviation 6 Repeatability relative standard deviation 7 Reproducibility relative standard deviation

1.6498 0.0458 0.0910

s(r) s(R)

RSD(r) RSD(R)

2.78 5.52

8 HORRAT value

0.19