V2 A4 Calibration Block 25MM AluminumV2 Calibration Block
V2 A4 Calibration Block 25MM Aluminum 25mm thick small calibration block for onsite checking of miniature shear wave probe index, time base, beam angle and gain. Includes a 25mm and 50 mm radius, 1.5mm hole or 5mm , engraved reference mark scales from 35 to 75 degrees. In accordance with British Standard BS 2704 block A4, Fig. 4, and AS 2083.