MARTINDALE ABRASION TESTER
Determination of resistance of any fabric to abrasion is usually carried out by abrading the fabric under specified conditions against a standard abrading. Although plane abrasion of fabric surface does not cover all aspects of strains that are important in determining service life, there are occasions when such a test gives useful information. With 4 nos circular abrasion tables circular specimen of fabric are abraded under known pressure under a motion which is the resultant of too simple harmonic motion at right angle to each other the resistance of abrasion is estimated by visual appearance or by finding the loss in mass of the specimen.
Maximum number of test specimens that
can be Tested at a time : Four
Speed of outer pegs : 47.5 + 2 rpm
Ratio of speeds of outer pegs to centre peg: 32: 30
Stroke of pegs : 60.5 mm
Face area of specimen holder (Diameter) : 6.45 cm² (28.65 mm)
Pressure on test specimens : 3, 6, 9, and 12 KN/m²
Maximum load : 790 g
(corresponding to pressure of 12 KN/m²)
IS 12673 –1989 :Textile Fabrics – Abrasion Resistance – Methods for Determination
BS Handbook1: Method of test for abrasion Resistance of fabrics.
BS EN 344:1992: Requirement and test methods for safety, protective and occupational footwear for professional use.
IS 15298 (Part – 1) : 2002 , ISO: 8782 – 1 : 1998
ABRASION TESTER FOR SOLE LEATHER
Size of the base : 15mm X 15 mm
Mass of the finger : 500 gm.
Total mass when fully loaded : 1 Kg.
RPM : 40 + 2 cycles/minute.
Size of the abradant fabric : 15 mm X 15 mm.
GSM : 1750 + 100
IS : 15298 (Part 1) : 2002ISO : 8782 : 1998