Registration number (WIID)Project No.TitleStatus
54167LVS HD 443 S1:2002Occluded-ear simulator for the measurement of earphones coupled to the ear by ear insertsAtcelts
44353LVS HD 450.0 S1:1984Hearing aids - Part 0: Measurement of electroacoustical characteristicsAtcelts
57191LVS HD 450.11 S1:2002Hearing aids - Part 11: Symbols and other markings on hearing aids and related equipmentAtcelts
49037LVS HD 450.1 S1:1984Hearing aids - Part 1: Hearing aids with induction pick-up coil inputAtcelts
49101LVS HD 450.2 S1:1984Hearing aids - Part 2: Hearing aids with automatic gain control circuitsAtcelts
42720LVS HD 450.3 S1:2002Hearing aids - Part 3: Hearing aids equipment not entirely worn on the listenerStandarts spēkā
49730LVS HD 450.4 S1:1984Hearing aids - Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposesAtcelts
43867LVS HD 450.5 S1:2002Hearing aids - Part 5: Nipples for insert earphonesStandarts spēkā
45219LVS HD 450.6 S1:1986Hearing aids - Part 6: Characteristics of electrical input circuits for hearing aidsAtcelts
55153LVS HD 450.7 S1:1985Hearing aids - Part 7: Measurement of performance characteristics of hearing aids for quality inspection for delivery purposesAtcelts
Displaying 251-260 of 284 results.