Greenspan's calibration table - HMK15

The number on the right in each column indicates the uncertainty of the reference humidity of the salt in that temperature.

Table 1. Greenspan's calibration table

ºC	LiCl	MgCl2	NaCl	KCl	K2SO4
0		33.7 ± 0.3	75.5 ± 0.3	88.6 ± 0.5	98.8 ± 1.1
5		33.6 ± 0.3	75.7 ± 0.3	87.7 ± 0.5	98.5 ± 0.9
10		33.5 ± 0.2	75.7 ± 0.2	86.8 ± 0.4	98.2 ± 0.8
15		33.3 ± 0.2	75.6 ± 0.2	85.9 ± 0.3	97.9 ± 0.6
20	11.3 ± 0.3	33.1 ± 0.2	75.5 ± 0.1	85.1 ± 0.3	97.6 ± 0.5
25	11.3 ± 0.3	32.8 ± 0.2	75.3 ± 0.1	84.3 ± 0.3	97.3 ± 0.5
30	11.3 ± 0.2	32.4 ± 0.1	75.1 ± 0.1	83.6 ± 0.3	97.0 ± 0.4
35	11.3 ± 0.2	32.1 ± 0.1	74.9 ± 0.1	83.0 ± 0.3	96.7 ± 0.4
40	11.2 ± 0.2	31.6 ± 0.1	74.7 ± 0.1	82.3 ± 0.3	96.4 ± 0.4
45	11.2 ± 0.2	31.1 ± 0.1	74.5 ± 0.2	81.7 ± 0.3	96.1 ± 0.4
50	11.1 ± 0.2	30.5 ± 0.1	74.4 ± 0.2	81.2 ± 0.3	95.8 ± 0.5

^{Greenspan, L.: Journal of Research of the National Bureau of Standards - A Physics and Chemistry Vol. 81A, No. 1 January-February 1977, pp. 89-95}