ABL90 FLEX reference manual Appendix – Quality control
I-11
Range+ QUALICHECK solutions (usable for e.g. Calibration verification, see
section
Calibration verification in Chapter 6: Calibration in the ABL90 FLEX
operator's manual).
Parameter Equation for temperature correction
pH:
pH(corr. to 25 C) = pH(meas.) A(t 25)
pCO
2
:
pCO
2
(corr. to 25 C) = pCO
2
(meas.) 1 A(t 25)
pO
2
:
pO
2
(corr. to 25 C) = pO
2
(meas.) 1 A(t 25)
where A = a temperature constant. The values are given in the table below.
Range+ QUALICHECK Temperature constants, A
Level 1 Level 2
pH 0.0013 0.0026
pCO
2
0.0056 0.0071
pO
2
0.0098 0.0107
NOTICE: Temperature fluctuations for S7950 (level 3) are negligible so that no
temperature corrections are required for this control solution.
Temperature
corrections for
pH, pCO
2
and
pO
2
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