Mechanical vibration - Balance quality requirements for rotors in a constant (rigid) state - Part 1: Specification and verification of balance tolerances (ISO 1940-1:2003)— 32 стр.
Tools for woodworking - Safety requirements - Part 2: Requirements for the shank of shank mounted milling tools; German version EN 847-2:2001 + AC:2003— 10 стр.