| Document ID (ISN) | 63196 |
| CIS number |
94-1719 |
| ISSN - Serial title |
0007-9952 - Cahiers de notes documentaires - Hygiène et sécurité du travail |
| Year |
1994 |
| Convention or series no. |
|
| Author(s) |
Kusy A. |
| Title |
Measurement of the sound attenuation of air-fed protective helmets |
| Original title |
Mesure de l'affaiblissement acoustique des cagoules de protection respiratoire [in French] |
| Bibliographic information |
1st Quarter 1994, No.154, Note No.1953-154-94, p.61-68. 9 ref. |
| Abstract |
Air-fed protective helmets are used to protect workers from metal dust or particle projections, particularly during sand and shot blasting operations that are also associated with high noise levels. It was therefore interesting to determine whether these devices also protect the wearers from noise. At present, however, there are no regulations governing the noise attenuation properties of this equipment, and no standardized method for measuring the sound attenuation provided. This paper presents the implementation of the MIRE (Microphone In the Real Ear) measuring technique, which seems to be suitable for measuring the sound attenuation afforded by air-fed protective helmets. Minor sound attenuation is achieved by these protective devices, indicating the need for users of these devices to wear ear protectors when exposed to sound pressure levels higher than the legal limit. |
| Descriptors (primary) |
noise; sound attenuation; supplied air hoods; respirators; personal protective equipment |
| Descriptors (secondary) |
hearing protection; description of equipment; hearing damage risk criteria; ISO; hearing conservation; dust; noise level measurement; description of technique; sandblasting; noise level |
| Document type |
D - Periodical articles |
| Country / State or Province | France |
| Subject(s) |
Noise, hearing and vibration
|
| Broad subject area(s) |
Physical hazards
|
| Browse category(ies) |
Personal protection
Noise
Respiratory protection
|
