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2. REFERENCED DOCUMENTS 2.1 ASTM F694, Heel Attaching Strength Test for Women´s Shoes. 2.2. Proposed Standard Test Method for Heel Attaching Strength of Footwear, (ASTM Subcommittee F13.2 on Biomechanics and Footwear Construction, 11-2000). 2.3 SATRA PM113, Heel Attaching Strength (SATRA Technology Center, Ketering, Northhamptonshire, NN169JH, UK. 3. TERMINOLOGY 3.1 Heel Breast - the front face of the shoe heel. 3.2 Heel Height - the perpendicular distance from the top back edge of the heel to the plane of the tread (wear) surface. 3.3 Outsole - The bottom (sole) of the shoe: including the surface that is exposed to wear. 3.4 Top Piece (toplift) - the bottom layer of a heel usually made of leather, rubber, plastic, etc.
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