Exposure Rack For Testing Lab Description and Specifications for Lab Tenders
Exposure Rack For Testing Lab Workshop.
Exposure Rack - For Testing Lab
Exposure rack for coated fabric
Various types of materials
whether it is coated fabrics, or a polyvinyl chloride sheeting or
insulation and sheath of cable experience change in colour when exposed
to daylight for sufficient period because of the action of daylight on
pigments used. The severity of exposure in both time and intensity of
daylight determines the extent of the change in colour. The
colorfastness is denoted by the number of the dyed wool standard
(provided by British Standards Institute) that has changed colour to the
same extent as the test specimen. It is expressed in the numerical
rating for light fastness.
The Exposure Rack consists
of an open bottomed wooden box fitted with a removable wooden frame
carrying a wire screen, a wooden removable rack for supporting test
pieces / wool standards and a hinged lid made of aluminium angle frame
with Acrylic sheet fixed on the same. The box is fitted on a stand to
keep the case in open with 45º inclination to the horizontal.
civil lab equipments manufacturers