Performance Verification Statement for the Xylem EXO 2 pH Sensor

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Ref. No. [UMCES] CBL 2015-014
ACT VS15-07
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A cross-plot of the matched observations is given in figure 25. The linear regression was
highly significant (p<0.001, r2= 0.71) with a slope of 0.58 and intercept of 3.63.
Figure 25. CBL field response plot a Xylem EXO pH instrument compared to reference pHTotal samples.
Fine dotted line represents 1:1 correspondence, coarse dotted line represents correspondence predicted
based on difference between pHNBS and pHTotal in seawater (pH NBS = pHTotal + 0.13).