| Document ID (ISN) | 49945 |
| CIS number |
88-1336 |
| Year |
1984 |
| Convention or series no. |
Undersökningsrapport 1984:23
|
| Author(s) |
Löfstedt P., Limnell I. |
| Title |
Infrasonic noise in milling plants |
| Original title |
Infraljud i spannmålskvarnar [in Swedish] |
| Bibliographic information |
Arbetarskyddsstyrelsen, Publikationsservice, 171 84 Solna, Sweden, 1984. 29p. Illus. 9 ref. |
| Abstract |
Infrasonic noise measurements were made in different types of milling plants. The highest levels were found in the area of the screening machine. Generation of infrasound was correlated with the rotation of the screen (200-250rpm). The infrasound was dominated by frequencies in the range 3.3-4.2Hz. The noise levels in the screening areas of the milling plants varied between 114-118dB(IL). These levels exceeded the present Swedish limit values for infrasound (110dB). However, in most cases the levels were below the new suggested limit defined for third-octave frequency bands. |
| Descriptors (primary) |
infrasound; noise measurement; milling industry |
| Descriptors (secondary) |
infrasound frequency; report; sieving; milling machines; grain and seed processing; noise level |
| Document type |
E - Books, reports, proceedings |
| Subject(s) |
Noise, hearing and vibration
|
| Broad subject area(s) |
Physical hazards
|
| Browse category(ies) |
Noise
Food industry
|
