Petroleum and natural gas industries - Pipeline transportation systems - Welding of pipelines (ISO 13847:2000, modified); German version EN 14163:2001, text German and English— 62 стр.
Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 2: Probes; German version EN 12668-2:2001— 51 стр.
Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 3: Combined equipment; German version EN 12668-3:2000— 7 стр.