ASME N-625 Reference Plate (Inch Version) In accordance with ASME 1275N Boiler and Pressure Vessel Code, Section III, Nuclear Vessels. Used for longitudinal, shear, and surface wave sensitivity calibrations. Geometry: Contains six flat-bottom holes: three 4/64” diameter, one each at depths of .050”, .250”, and .500”; one 4/64” diameter at 1.500” deep; one 8/64” diameter at 1.625” deep; and one 16/64” diameter at 1.750” deep. Also contains the calibration notch. Dimensions: 12.000? x 6.000? x .500?

ASME N-625 Reference Plate (Metric Version) In accordance with ASME 1275N Boiler and Pressure Vessel Code, Section III, Nuclear Vessels. Used for longitudinal, shear, and surface wave sensitivity calibrations. Geometry: Contains six flat-bottom holes: three 1.6mm diameters, one each at depths of 1.2mm, 6.35mm, and 12.5mm; one 1.6mm diameter at 38mm deep; one 3.2mm diameter at 41.3 deep; and one 6.35mm diameter at 44.5 deep. Also contains the calibration notch. Dimensions: 300mm (L) x 150mm (W) x 12.5mm (T).