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D.4
PRECISION
Precision was performed on commercially available liquid control solutions.
Typical precision was observed as follows.
pH Level 1 Level 2 Level 3
Day 1
Number of samples: 15 15 15
Mean: 7.228 7.416 7.631
SD: 0.007 0.005 0.011
CV (%): 0.1 0.1 0.2
Day 2
Number of samples: 15 15 15
Mean: 7.228 7.414 7.625
SD: 0.006 0.005 0.008
CV (%): 0.1 0.1 0.1
pCO
2
Level 1 Level 2 Level 3
Day 1
Number of samples: 15 15 15
Mean (mmHg): 70.7 38.5 17.7
SD: 2.2 1.7 0.7
CV (%): 3.1 4.3 3.7
Day 2
Number of samples: 15 15 15
Mean (mmHg): 71.4 39.1 18.1
SD: 3.4 0.7 0.5
CV (%): 4.7 1.7 2.8
pO
2
Level 1 Level 2 Level 3
Day 1
Number of samples: 15 15 15
Mean (mmHg): 71.9 99.4 163.8
SD: 2.9 1.9 2.3
CV (%): 4.0 1.9 1.4
Day 2
Number of samples: 15 15 15
Mean (mmHg): 70.9 101.1 165.9
SD: 2.4 1.6 2.1
CV (%): 3.3 1.6 1.3