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For the purposes of its contract with the Commission, CEN has defined three types of4 _" u" }; g8 n# U1 X. I7 M
harmonized standard, A, B and C. This terminology is specific to the standards drafted
$ D' F1 Y$ m: Lunder the machinery Directive. Classes A, B and C do not have the same meaning under; @, L. ^' V" [$ t! V
other Directives, such as “construction products” (89/106/EEC as amended).35
0 U6 Y3 j4 h7 r' Y: i2 T- |-A standards deal with basic concepts concerning all machinery; standard EN 292 is an
+ s/ S8 \5 T, \! Jexample of this category;% p; k! F% u3 C" C5 k3 n6 ~0 p1 O
- B1 standards deal with safety aspects concerning a range of machinery such as safety9 H1 j$ q. n, ~+ K
distances, calculation methods for lifting equipment, etc.; examples of these are
" m/ p" m$ X& x1 M4 IEN 294 on safety distances and EN 563 on temperatures of touchable surfaces;+ B( s7 M( W9 H! l; `% ~. a
- B2 standards deal with components or devices, such as safety devices, which are used
5 k/ s2 Q; [8 ion a wide variety of machinery; EN 281, on the design of pedals, is an example;1 m; B. ]9 i& D2 J
-C standards are “vertical” standards covering a single type of machinery. |
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