Registration number (WIID)Project No.TitleStatus
49101LVS HD 450.2 S1:1984Hearing aids - Part 2: Hearing aids with automatic gain control circuitsAtcelts
49037LVS HD 450.1 S1:1984Hearing aids - Part 1: Hearing aids with induction pick-up coil inputAtcelts
57191LVS HD 450.11 S1:2002Hearing aids - Part 11: Symbols and other markings on hearing aids and related equipmentAtcelts
44353LVS HD 450.0 S1:1984Hearing aids - Part 0: Measurement of electroacoustical characteristicsAtcelts
54167LVS HD 443 S1:2002Occluded-ear simulator for the measurement of earphones coupled to the ear by ear insertsAtcelts
48463LVS HD 425 S1:1983Sound Level metersAtcelts
48337LVS HD 305:2003IEC reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear insertsAtcelts
56438LVS HD 304 S1:1977Dimensions of plugs for hearing aidsAtcelts
44097LVS HD 178 S1:1977Methods for specifying the characteristics of electromechanical transducers for shock and vibration measurementsAtcelts
62831LVS EN IEC 61265:2018Electroacoustics - Instruments for measurement of aircraft noise - Performance requirements for systems to measure sound pressure levels in noise certification of aircraftStandarts spēkā
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