Non-destructive testing - Ultrasonic examination - Part 6: Time-of-flight diffraction technique as a method for detection and sizing of discontinuities; German version EN 583-6:2008— 26 стр.
Derivatives from coal pyrolysis - Coal tar and pitch based binders and related products: Impregnating pitch - Characteristics and test methods; German version EN 14264:2003— 7 стр.
Contract procedures for building works - Part C: General technical specifications for building works; Construction works for traffic lines, top layers of asphalt— 12 стр.