ORF1b-1 Copies/reaction 500 50 5 Water Time (min) 7.5 9.0 - - 7.3 8.8 10.5 - 8.0 11.8 - - 6.8 9.3 - 6.8 9.0 - - 7.3 8.5 - - Average 7.3 9.4 - - SD 0.4 1.1 - - Positive 6/6 6/6 1/6 0/6 ORF1b-2 Copies/ reaction 500 50 5 Water Time (min) 8.0 11.8 - - 7.8 - - - 7.3 11.5 - - 7.5 9.0 - - 7.3 9.5 - - 6.8 10.3 - - Average 7.4 10.4 - - SD 0.4 1.1 - - Positive 6/6 5/6 0/6 0/6