Projekta Nr.LVS EN ISO 11691:2021
NosaukumsSpecifies 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.
Reģistrācijas numurs (WIID)61466
Darbības sfēraSpecifies 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.
StatussStandarts spēkā
ICS grupa91.120.20