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For the purposes of its contract with the Commission, CEN has defined three types of
4 T; j" R. s' w# T5 b8 i1 K% Nharmonized standard, A, B and C. This terminology is specific to the standards drafted7 {' E, v% D2 s: g5 p( d
under the machinery Directive. Classes A, B and C do not have the same meaning under; f& F' J. Z& M* Q5 J7 _+ {- F
other Directives, such as “construction products” (89/106/EEC as amended).356 X7 \* [5 k# F: I& \
-A standards deal with basic concepts concerning all machinery; standard EN 292 is an0 B. a; T. {- E% s& P6 n% t
example of this category;( E2 ]2 q, x; l' z5 M1 N$ q
- B1 standards deal with safety aspects concerning a range of machinery such as safety0 u1 ~! x6 q; ~
distances, calculation methods for lifting equipment, etc.; examples of these are: m7 [$ o. X. M$ R: g1 s
EN 294 on safety distances and EN 563 on temperatures of touchable surfaces;% s0 \# n" k$ _- V" y5 k; y! Y
- B2 standards deal with components or devices, such as safety devices, which are used
$ F4 Z8 S% A' W/ q/ e6 |, S' L0 aon a wide variety of machinery; EN 281, on the design of pedals, is an example;9 `0 I, S) i) m& Y7 p3 c
-C standards are “vertical” standards covering a single type of machinery. |
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