Temperature

Correlation coefficient (R²)

$-\ln \left(1-F\right)$

$1-3{\left(1-F\right)}^{2/3}+2\left(1-F\right)$

$1-{\left(1-F\right)}^{1/3}$

30˚C

0.986

0.93

0.89

40˚C

0.97

0.92

0.898

50˚C

0.97

0.97

0.94