Specifies a laboratory substitution method to determine the insertion loss of ducted circular and rectangular silencers without flow, as well as other duct elements for use in ventilating and air-conditioning systems.
Related directives
Directives related to this standards.
89/392/EEC
Makineria - Siguria e makinerisë: kërkesa thelbësore të përgjithshme të shëndetit dhe sigurisë
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