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Pencil Hardness Tester
The purpose of Hardness Test is to determine the resistance of coating Materials or Lacquers to Scratch Effects on the surface. In the above test, Pencils of various degrees of hardness are moved over the surface under fixed Pressure and Angle to the surface. The degree of hardness of the Pencil which damages the surface e.g. “3H” Hardness – As per ASTM 3363Pencil Hardness Tester with “STAEDTLER” German Make Pencil set Original Packing (Box) Set of 12 Pencils 6B to 4H an indigeneous instruments.
(6B, 5B, 4B, 3B, 2B, B, HB, F, H, 2H, 3H, 4H )
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