Terminology of chip removing; movements and geometry of the chip removing process
Edition 1985-10

Measurements of electrical properties of electronic tubes; methods of measurement of emission current from hot cathodes for high-vacuum electronic tubes and valves
Edition 1971-10

Measurement of discharge capacity of electrolytic capacitors
Edition 1974-06

Excavators, spreaders and auxiliary equipment in opencast lignite mines - Part 4: Hoisting winch brakes
Edition 2023-06

Measurements of the electrical properties of electronic tubes and valves; precautions relating to methods of measurement
Edition 1974-02

Communication cables - Specifications for test methods - Part 1-6: Electrical test methods; Electromagnetic performance; German version EN 50289-1-6:2002
Edition 2002-12

Non destructive testing - Testing of hard spots on plates
Edition 2018-12

Measurements of the electrical properties of electronic tubes and valves; methods of measuring hiss and hum
Edition 1973-06

Measurements of the electrical properties of electronic tubes; measurement of equivalent noise resistance
Edition 1973-06

Headgears and winding towers for mines - Design loads, calculating- and construction principles
Edition 2018-12