It is possible to have a test block with multiple force calibrations. In order to calibrate a test block according to ASTM E92, 5 sets of 5 indentations are required (25 total). Therefore should you require 2 calibrations, the unit will have 50 micro indentations before being used for testing. This of course will still leave plenty of room for your other tests.

The test blocks are calibrated according to ASTM E92. NextGen works in partnership with an ISO 17025 companies who certify the test blocks. Each unit comes with a certificate of calibration.