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Instruments as per ASTM D1415

Standard Test Method for Rubber Property—International Hardness


The ASTM D1415 standard covers a process of measuring the stiffness of thermoplastic  or vulcanized rubber. The hardness is measured by analyzing the difference in the penetration profundity of a specified dimension ball under two test conditions of contact with the rubber: (2) with a small original force and (1) with a final bigger force. The differentiated penetration is considered in a specific period of time and value is measured with a hardness scale. This test procedure is similar to ISO 48.
The hardness test as per international standard is based on measurement of the penetration of a rigid ball into the rubber sample under specified conditions. The measured penetration is hence transformed into IRHD. The IRHD scale of degrees represents 0 as a material with elastic modulus of zero and 100 replicates a material with infinite elastic modulus.

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A Hardness Measurement device – “Shore A” Hardness tester

With the increasing demand for high-quality products, manufacturers in every production vertical are focusing on various testing techniques before commencing the manufacturing procedures. Now–a-days, Laboratory Testing instruments are in much demand to fulfill the same. Rubber Testing Instruments ar...




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