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For the purposes of its contract with the Commission, CEN has defined three types of
harmonized standard, A, B and C. This terminology is specific to the standards drafted
under the machinery Directive. Classes A, B and C do not have the same meaning under
other Directives, such as “construction products” (89/106/EEC as amended).35
-A standards deal with basic concepts concerning all machinery; standard EN 292 is an
example of this category;
- B1 standards deal with safety aspects concerning a range of machinery such as safety
distances, calculation methods for lifting equipment, etc.; examples of these are
EN 294 on safety distances and EN 563 on temperatures of touchable surfaces;
- B2 standards deal with components or devices, such as safety devices, which are used
on a wide variety of machinery; EN 281, on the design of pedals, is an example;
-C standards are “vertical” standards covering a single type of machinery. |
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