2015.14 Vitamin B (July 2018)

2015.14 (JULY 2018) BVit-02 AOAC_Edit_Riboflavin_Tot_MLT- AOAC_BlindDup_E10NWZC

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8/3/2018 Copyright 2006,2012 by AOAC International, all rights reserved. AOAC International Interlaboratory Study Workbook Blind (Unpaired) Replicates Critical values for Cochran maximum variance ratio test, 2.5% significance level Per: Horwitz, W., Pure & Appl Chem 67(2):331-343, 1995. Version:

2.1

# Labs

Number of replicates per laboratory

2 5 1 100.0% 100.0% 100.0% 100.0% 2 100.0% 100.0% 100.0% 100.0% 3 100.0% 100.0% 100.0% 100.0% 4 94.3% 81.0% 72.5% 65.4% 5 88.6% 72.6% 64.6% 58.1% 6 83.2% 65.8% 58.3% 52.2% 7 78.2% 60.2% 52.2% 47.3% 8 73.6% 55.6% 47.4% 43.0% 9 69.3% 51.8% 43.3% 39.3% 10 65.5% 48.6% 39.9% 36.2% 11 62.2% 45.8% 37.2% 33.6% 12 59.2% 43.1% 35.0% 31.3% 13 56.4% 40.5% 33.2% 29.2% 14 53.8% 38.3% 31.5% 27.3% 15 51.5% 36.4% 29.9% 25.7% 16 49.5% 34.7% 28.4% 24.4% 17 47.8% 33.2% 27.1% 23.3% 18 46.0% 31.8% 25.9% 22.4% 19 44.3% 30.5% 24.8% 21.5% 20 42.8% 29.3% 23.8% 20.7% 21 41.5% 28.2% 22.9% 19.9% 22 40.3% 27.2% 22.0% 19.2% 23 39.1% 26.3% 21.2% 18.5% 24 37.9% 25.5% 20.5% 17.8% 25 36.7% 24.8% 19.9% 17.2% 26 35.5% 24.1% 19.3% 16.6% 27 34.5% 23.4% 18.7% 16.1% 28 33.7% 22.7% 18.1% 15.7% 29 33.1% 22.1% 17.5% 15.3% 30 32.5% 21.6% 16.9% 14.9% 31 31.5% 21.1% 16.7% 14.4% 32 30.8% 20.5% 16.3% 14.0% 33 30.1% 20.1% 15.9% 13.7% 34 29.4% 19.6% 15.5% 13.3% 35 28.8% 19.2% 15.2% 12.9% 36 28.2% 18.7% 14.8% 12.7% 37 27.6% 18.3% 14.5% 12.4% 38 27.1% 17.9% 14.2% 12.2% 39 26.5% 17.6% 13.9% 11.9% 40 26.0% 17.2% 13.5% 11.6% 41 25.5% 16.9% 13.3% 11.4% 42 25.1% 16.5% 13.1% 11.2% 43 24.6% 16.2% 12.8% 11.0% 44 24.2% 15.9% 12.6% 10.7% 45 23.7% 15.6% 12.4% 10.5% 46 23.3% 15.4% 12.1% 10.3% 47 22.9% 15.1% 11.9% 10.1% 48 22.5% 14.8% 11.7% 10.0% 49 22.2% 14.6% 11.5% 9.8% 50 21.6% 14.3% 11.4% 9.7% 3 4

NOTES: 1. Values in red are corrected from original table.[RAL] 2. Values for 31-34, 36-39, 41-49 are interpolated.

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