14 – Comparative values with Volvic Water (10 min.)
There are hydrogen generators with a central
PEM-cell, which defuse oxygen through an air
hole directly from the cell into the air, already
as different models. Since the cells respectively
have two electrodes and the same diameter,
there are only small differences with the
cathode grid.
With devices of different manufacturers is the
desired amount of dissolved hydrogen almost
the same, which a comparative measurement
with 0,5 Liters of Volvic mineral water shows.
The difference of 0,1 ppm lies within the
measuring tolerance.
0,5 ppm
0,4 ppm
O
2
outlet
Cathode
grid
