ISO/TR 4869-4:1998 PDF
Acoustics — Hearing protectors — Part 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs
Acoustics — Hearing protectors — Part 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 7
- Дата публикации:
- 1 октября 1998 г.
- Издание:
- ISO TR 4869 edition 1 version 1
- ICS:
- 13.340.20
Le présent Rapport technique spécifie une méthode d'essai physique pour les serre-tête destinés à la restitution du son.Les mesurages physiques sont effectués à l'aide du dispositif d'essai acoustique conformément à l'ISO/TR 4869-3 ou à l'aide d'un simulateur de tête et de torse (STET) approprié avec un isolement acoustique adéquat (voir article 7). Les résultats de ces essais, ainsi que les résultats issus des essais de l'ISO 4869-1, peuvent être utilisés pour évaluer le niveau de pression acoustique pondéré A en cas d'utilisation de serre-tête destinés à la restitution du son.La méthode décrite dans le présent document n'est pas applicable au mesurage du niveau effectif de pression acoustique des serre-tête dans le cas de serre-tête destinés à la réduction de bruit impulsif ou actif.
Технические детали
- Технический комитет
- ISO/TC 43/SC 1 - Noise
- SKU
- ISO/TR 4869-4:1998
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