Formed Metal Plate MT & PT Exam Flaw Specimen (Metric Version) CS Formed Metal Plate MT and PT Exam Flaw Specimens Formed Metal Plate Magnetic Particle and Liquid Penetrant Exam flawed specimens. Geometry: 6mm (T) x 100mm Plate. Flaws: 3, randomly placed Standard Tolerance: +/-4mm. Documentation: NDT Verification Reports, C of C, CAD Drawings and Test Sheets. Material: Carbon Steel. Customized Calibration Test Block and Flaw Specimen also available.