The Isotech B8 30 130 Cell is small enough to fit into
portable Dry Blocks such as the Venus and Europa models.
For the larger blocks like the Oceanus Isotech, we recommend
the B 12 46 210 with its increased immersion depth
Gallium and Mercury Cells
Like the B8 Cell, the Slim Gallium Cell can be used in
portable blocks like the Venus and Europa, or in stirred
liquid baths. The Hydra and Orion have accessories
available to support the cells.
Indium to Copper
Isotech’s Slim Cells have been in constant use since their
introduction in 1990. The cells have always been made from
the highest quality graphite and 6N (99.9999%) pure metals.
After further investment in the lab, and gaining smaller
uncertainties from UKAS, we reviewed and further refined
our range of metal clad cells to give better accuracy and
performance. The new professional ranges of cells have
more metal inside, providing an active immersion depth in
the metal of 160mm.
Isotech produced the first metal clad cells in 1990 and
have much experience in the manufacture and calibration
of high quality proven metal clad cells.
Metal clad cells are recommend for all points from Indium
These cells are recommended for Silver and Copper points.
Whilst available for the lower temperature points, the metal
clad versions are recommended as they are more robust,
have the same performance, and are more cost effective.
Equipment for Slim Cells
The Slim Cells can be used in the same apparatus as the
larger cells, and the greater immersion depth will give the
Cost effective dedicated desktop apparatus like the
POTTS, “Points on the Temperature Scale” can be used to
automatically bring the cell to the plateau. These simple to
use systems conveniently provide a long flat plateau for low
uncertainty calibration of thermometers.
UKAS certification of our Slim Cells
The metal clad fixed point cells are intercompared to our
reference cells for smallest uncertainties. Isotech now offers
two UKAS services, depending on the number of
measurements we make on the cell under test.
In our standard and recommended service, we perform one
melt, one freeze and one intercomparison. In our premium
service, in order to reduce uncertainties we perform two or
three melts, two or three freezes and two intercomparisons.