Moisture Vapour Transmission Meter
MVTR stands for “Moisture
Vapour Transmission Rate”, a measure of the passage of gaseous water
(i.e. water vapour) through a barrier. It's also know as "WVTR",
or "Water Vapour Transmission Rate".
The MVTR meter from Versaperm,
a world leader in MVTR (Moisture Vapour Transmission Meter) technology,
has introduced a quick and simple way to test the all-important water
moisture or vapour permeability transmission rates of a huge range of
materials, samples, enclosures and packaging types.
The Versaperm MVTR meter is
easy to use and gives a series of Moisture Vapour Transmission rate digital
readouts, which can be recorded or simply read off the LCD screen. It
needs no re-calibration and requires, at most, minimal training to give
MVTR results that are accurate to better than one part per million (with
some samples a few parts per hundred million). Sensitivities are in the
range 0.05 – 3200g/m2/day and Moisture Vapour Transmission rate
measurements can be achieved in as little as 30 minutes for some materials.