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.jpg "Wear Tester for Shoe Laces (Satra Type) For Testing Lab")
CAT NO: DIDACTICNLE-Export-800001
Wear Tester for Shoe Laces (Satra Type) For Testing Lab Workshop.
Wear Tester for Shoe Laces (Satra Type) - For Testing Lab
Wear Tester For Shoe Lace
The resistance of Shoe Laces
to wear and tear due to abrasion while tying is determined by abrading
two samples of the lace against each other under a specified tension and
finding the number of rubs which cause one of the laces to wear off
till it breaks into two. One of the laces used in the test is formed
into a loop and suspended from a pin in a vertical plane. One end of the
second laces is held in a rotating grip. The lace is passed through the
loop of the first lace and a specified dead weight suspended from its
free and to keep both the loops under tension. The movement of the grip
causes rubbing action between the two laces, which continues till one of
them fails. The number of rubs needed to cause failure gives a measure
of the resistance of the lace to wear. Wearing of lace against eye let
can also be
evaluated
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