56 صفحه pdf
BS EN 12668:2010
Non-destructive testing-Characterization and verification of ultrasonic examination equipment, Part 2: Probes
فرمت فایل: Pdf
BS EN 12223:2000
Non-destructive testing-Ultrasonic examination- Specification for calibration block No.1
22 صفحه pdf
ISO 11666:2010
Non-destructive testing of welds- Ultrasonic testing- Acceptance levels