Test Block H10
Rubber Hardness Test Blocks are available in 5 scales - IRHD (Macro), IRHD (Micro), shore A, D and M. they are manufactured from high quality rubber formulated to resist the ageing effects on hardness of temperature and time. The test blocks are for use as a check to ensure instruments are functioning properly and read correctly. They are not intended as standards with specific hardness values.
Test blocks should be returned to Wallace every 12 months for re-calibaration.