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Vapour meter
March 1st 2008 Seals, mastics, adhesives, gaskets,
O-rings and enclosures might be
waterproof but, according to
Versaperm, most still let in water
vapour. The company says that
while a huge number of materials
are virtually impervious to liquid
water, they allow water vapour to
flow straight through almost
unhindered. Vapour is invasive and
to eliminate the problems it causes,
it is necessary to measure the
permeability.
The Versaperm WTR (Water
Vapour Transmission)meter has
been designed for this task, and
can measure how vapour
permeability varies with temperature,
pressure and other conditions. It
copes with several samples, seals
or enclosures at a time, often
giving readings in as little as 30min. |
