METER GROUP WP4C - 14 Appendix B

WP4C 14 APPENDIX B
14 Appendix B
Temperature Correction
of METER’s Verification Standards
Table 3: Water Activity of Selected Salt Solutions
Temp. H
2
O
0.50 2.33 6.00 8.57 13.41 17.18
(
◦
C)
mol/kg mol/kg mol/kg mol/kg mol/kg mol/kg
KCL NaCL NaCL LiCl LiCl LiCl
15.0 1.000 0.984 0.923 0.761 0.492 0.238 0.140
20.0 1.000 0.984 0.922 0.760 0.496 0.245 0.145
25.0 1.000 0.984 0.920 0.760 0.500 0.250 0.150
30.0 1.000 0.984 0.920 0.760 0.504 0.255 0.155
35.0 1.000 0.984 0.920 0.760 0.508 0.261 0.160
40.0 1.000 0.984 0.921 0.760 0.512 0.266 0.165
50.0 1.000 0.984 0.894 0.740 0.517 0.275 0.172
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