IEC 60651:1979 PDF
Sound level meters
Название (английский):
IEC 60651:1979
Sound level meters
- Формат:
- Электронный (PDF)
- Количество страниц:
- 77
- Дата публикации:
- 25 октября 2001 г.
- Издание:
- IEC IS 60651 edition 1 version 1
- ICS:
- 17.140.50
- Технический комитет:
- TC 29 - Electroacoustics
Описание (английский):
Deals with sound level meters of four degrees of precision, designated Types 0, 1, 2 and 3. Specifies the following characteristics: directional characteristics, frequency weighting characteristics, time-weighting, detector and indicator characteristics, sensitivity to various environments. Establishes electrical and acoustical tests to verify compliance with characteristics specified and describes the method for absolute sensitivity calibration. This standard supersedes IEC 60123 and IEC 60179.
Технические детали
- SKU
- IEC 60651:1979