MM098-002 – LOGOS ONE – Operator Manual
White appearance of
block face.
Tissue block surface looks
unprocessed after trimming
the block (opaque white
surface).
Section can be easily cut and
when placed on water bath it
does not explode.
“DRY” feel of block face in
unprocessed areas, usually in
the centre of the larger
blocks.
1. Tissue has been sufficiently
dehydrated and cleared (dry tissue),
however WAX impregnation is not
complete.
Indicated by continued bubbling originating
from the tissue blocks in the final step of the
WAX program.
Can be seen when processing larger blocks,
where times become more critical to
accommodate the larger sizes.
1. Retrospectively increase WAX impregnation
time by melting the block down and placing it
into molten WAX in a WAX oven for
convenience.
AND
Increase standard WAX impregnation times
for future processing runs.
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