Navships Calibration Test Block (Metric Version) ALUMINUM 7075-T6

Used for distance amplitude correction, sensitivity levels and flaw depth information. MTDs are engraved near both scan edges on one face. In accordance with MIL-STD-271G Figure 9, and NAVSHIPS Specification 0900-006-3010/Section 6. Also known as a "Mare Island block.

Geometry: Contains six 1.2mm diameter side-drilled through-holes at distances of 6.25mm to 68.75mm in 6.25mm increments. 

Dimensions: 30mm x 75mm x 300mm

Material: ALUMINUM 7075-T6