CLC/SR 29
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 49101 | HD 450.2 S1:1984 | Hearing aids - Part 2: Hearing aids with automatic gain control circuits | Atcelts |
| 42720 | HD 450.3 S1:1984 | Hearing aids - Part 3: Hearing aid equipment not entirely worn on the listener | Atcelts |
| 49730 | HD 450.4 S1:1984 | Hearing aids - Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes | Atcelts |
| 43867 | HD 450.5 S1:1985 | Hearing aids - Part 5: Nipples for insert earphones | Izstrādē |
| 45219 | HD 450.6 S1:1986 | Hearing aids - Part 6: Characteristics of electrical input circuits for hearing aids | Atcelts |
| 55153 | HD 450.7 S1:1985 | Hearing aids - Part 7: Measurement of performance characteristics of hearing aids for quality inspection for delivery purposes | Atcelts |
| 58197 | HD 450.9 S1:1987 | Hearing aids - Part 9: Methods of measurement of characteristics of hearing aids with bone vibrator output | Atcelts |
| 57749 | HD 499 S1:1990 | Integrating-averaging sound level meters | Atcelts |
| 54814 | HD 556 S1:1991 | Sound calibrators | Atcelts |
| 42684 | HD 590 S1:1991 | Mechanical coupler for measurements on bone vibrators | Atcelts |
Displaying 121-130 of 278 results.