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2. Machine acoustic specifications
European Directive 89/392/EC (published in 1989, then amended and renumbered 98/37/EC in 1998) is a major "new approach" directive, known as the "Machinery" Directive.
Three families of standards, known as "type A", "type B" and "type C", have been developed to accompany this directive. Type A standards cover the basic concepts of machine safety. Type B standards cover horizontal topics relating to machine safety, such as noise emission measurement. Type C standards deal with technical safety aspects specific to a given family of machines; these are the most numerous.
2.1 Essential noise requirements of the Machinery Directive
Noise is a source of risk on virtually all machines. The directive lays down two essential requirements concerning...
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French Acoustics Society (SFA) http://www.loa.espci.fr/sfa/
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