Mean Range (viscosity Mean Day (sample) Day (sample) Range (viscosity (viscosity (viscosity measure) measure) measure) measure) 1 10.30 0.18 6. 10.49 0.11 10.51 0.55 7 10.44 0.28 3 10.34 0.31 8. 10.46 0.36 4 10.46 0.21 9. 10.38 0.43 10.48 0.05 10 10.41 0.32

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