DIN 53_291
Testing of sandwiches; Compression test perpendicular to the faces


DIN 53_291 establishes the method for determining Shore A hardness of elastomers and elastomeric materials using a durometer penetrometer. This test applies to rubbers, thermoplastic elastomers, and polymeric materials exhibiting elastic properties. The standard specifies measurement of penetration depth under defined load and temperature conditions, yielding a numerical value that characterizes the material's surface rigidity. This method is essential for quality control and technical classification of elastomeric components across industrial applications.

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