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CAT NO: DIDACTICNLE-Export-105001
Humidity Chamber.
Humidity Chamber -
A humidity chamber is used for exposing materials or products under
test to an atmosphere of controlled humidity and temperature. For most
of the materials it is used for conditioning the sample before the
actual test is carried out. In case of helmets it is used to condition
the helmets before conducting the impact absorption and penetration
resistance tests on them.
The Humidity Chamber is
designed to produce controlled humidity using an appropriate saturated
salt solution corresponding to the humidity required at the specified
temperature. The salt solution is kept at the bottom of the chamber. The
solution releases water vapour to increase the relative humidity, if it
is below the specified value, or absorbs water vapour, if the relative
humidity is higher.
The chamber is constructed from 10 mm thick
transparent acrylic sheet and has two wide doors. Two shelves made of
plastic material to keep the specimen under test on and two plastic
trays for keeping the saturated salt solution are provided with the
chamber.
An air-circulating fan to keep the conditions
uniform in the chamber is also provided. The relative humidity and the
temperature inside the chamber are measured with the help of dry and wet
bulb thermometers.
Technical Data
Dimensions of chamber : 60 cm x 45 cm x 75 cm
Number of helmets that can be kept at a time : Four
Humidity control : By changing saturated salt solution (Recommended solution for 65% RH sodium nitrate)
Conditioning temperature : Ambient room temperature
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