Special auxiliary subdivision for technology in general
The term 'machine' is used in 62-1/-9 for brevity to include any tools, equipment and installations, and their components
These special auxiliaries are applicable throughout 62/69
Engineering. Technology in general
General characteristics of machines etc.
Fixed and movable parts, components of machines
Fluid control parts and drives. Valves, closures etc.
State, condition, form of materials, surfaces, objects, products
Operation and control of machines and processes
Fuel and other heat-source characteristics of machinery and installations
Devices for servicing, maintenance and protection of machines
Machines according to motive power, propulsive force. Source of energy of machine
Variables, conditions and characteristics of production processes, plant and equipment
The UDC Summary (UDCS) provides a selection of around 2,400 classes from the whole scheme which comprises more than 69,000 entries. Please send questions and suggestions to
The data provided in this Summary is released under the
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