Hierarchy of Machinery Directive Standards
Harmonized standards provide a presumption of conformity to the essential requirements for which they apply.
Types of harmonized standards
- Type A standards (fundamental safety standards)
- Provide basic concepts, principles for design, and general aspects that can be applied to all machinery
- Type B standards (group safety standards)
- Type B1 standards provide requirements for particular safety hazards (e.g. safety distances, surface temperatures, noise)
- Type B2 standards provide requirements for safety related devices (e.g. two hand controls, interlocking devices, guards)
- Type C standards (machine safety standards)
- Provide detailed safety requirements for a particular machine or group of machines
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