Water activity
instrument
tests
Details for
calibration samples
EminTech
Water activities of calibration samples used for measurements
at 22.5 °C are shown in the tables below:
The figures in the table were obtained by interpolation between
values for aw at 20 and 25 °C.
The aw values were taken from the Decagon instrument manual
and from Novasina calibration sample information on the samples.
Note Novasina that LabMASTER-aw was calibrated at 25 °C,
but that the measurements were run at 22.5 °C.
|
|
Navigation |
|
| Test details | |
| Salt solutions used | |
| Desktop instruments | |
| Portable instruments | |
| Results | |
| Desktop instruments | |
| Decagon AquaLab 3TE | |
| Novasina LabMASTER-aw | |
| Rotronic HygroLab 2 | |
| Portable instruments | |
| Decagon PawKit | |
| Rotronic HygroPalm | |
| Testo 650 | |
| Summary | |
| Desktop instruments | |
| Portable instruments | |
|
|
| |
|
|
|
| Decagon samples | |||
| 0.5m KCl | 0.984 | ||
| 6.0m NaCl | 0.760 | ||
| 8.57m LiCl | 0.498 | ||
| 13.41m LiCl | 0.2475 | ||
|
|||
| |
|
|
|
| Novasina samples | |||
| 97 K2SO4 | 0.9745 | ||
| 90 BaCl2 | 0.903 | ||
| 75 NaCl | 0.754 | ||
| 53 Mg(NO3)2 | 0.5365 | ||
| 33 MgCl2 | 0.3295 | ||
| 11 LiCl | 0.113 | ||
|
|||