Project No.LVS EN ISO 11691:2021
TitleSpecifies 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.
Registration number (WIID)61466
ScopeSpecifies 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.
StatusStandarts spēkā
ICS group91.120.20