Product Description

Shore ceased all production operations in 2012 and their products are no longer available. CCSi continues to support Shore equipment in regard to service, calibration and ISO/IEC 17025 certification.


The IRHD method is superior to most standard durometer indentation hardness testing methods. The material hardness is determined by the difference in the penetration depth of a spherical indentor under two conditions, the application of a small initial force and the application of a larger terminal force.

These determinations are performed at specific intervals and dwell, the differential is converted to a hardness value, in compliance with ASTM D1415 “Standard Test Method for Rubber Property — International Hardness” (2.5 mm indentor), as well as ISO 48, Type N.

It is highly recommended that when durometer hardness testing is being employed as a critical input to production control or QA/QC criteria that the IRHD testing methodology be given serious consideration.

Shore® offers two very high quality and relatively inexpensive models of IRHD Testing Systems.

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IRHD Model 903/2000 Fill 118 Copy 1 Created with Sketch.

The Model 903/2000 features the DuroTronic™ 2000 IRHD digital transducer coupled with the specially designed Model 903 automatic operating stand.

IRHD Model 770/2000 Fill 118 Copy 1 Created with Sketch.

The Model 770/2000 also employs the DuroTronic™ 2000 IRHD digital transducer and a less expensive, yet high quality and precise, manual operating stand.

IRHD Model S1 Fill 118 Copy 1 Created with Sketch.

The Model S1 employs the new S1 modular digital system! It will be introduced soon… more information to follow.

Index Terms: Fill 118 Copy 1 Created with Sketch.

IRHD Durometer, ISO 48, ASTM D1415, DIN 53519, international rubber hardness degrees, international hardness, differential penetration, hardness scale value, force, penetration depth, dimension ball, normal test, N, high hardness test, H, low hardness test, L, microtest, M, curved surface, CN, CH, CL, CM, Shore durometer, Shore hardness, Shore, hardness, rubber hardness, plastic, plastic hardness, indentation hardness, ebonite, ebonite hardness, rubber hardness testing, rubber testing, hardness testing, durometer hardness, testing, MIL-STD-45622A, MIL-I-45208A, MIL-STD-120, ERDEC, TRDEC, NAVSWC, DREA, 83.060, 83.080.01.