Objective

• It determines the hardness of rubber and related components. It is widely used in the rubber industry to evaluate this important property. It is equipped with a spherical indentor, which indents the sample under a minor and major Load. 

Operating Mechanism

• The IRHD (International Rubber Hardness Durometer) method employs an initial test load that is applied to the specimen via an indenter. The test is zeroed at this indentation position, then the test force is applied. The distance between the two applied forces is measured and converted to an IRHD hardness value.