Superseded
Standard
Historical
BS ISO 9921-1:1996
Ergonomic assessment of speech communication Speech interference level and distances for persons with normal hearing capacity in direct (SIL method)
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No description.
Technical characteristics
| Publisher | British Standards Institution (BSI) |
| Publication Date | 03/15/1997 |
| Cancellation Date | 10/28/2005 |
| Page Count | 18 |
| Themes | Working conditions (physical) |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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