[The IOS 1999 International standard: 10 years later].
D001309:Auditory Threshold; D006317:Hearing Loss, Noise-Induced / Q000517:prevention & control*; D006801:Humans; D009622:Noise / Q000517:prevention & control*; D009623:Noise, Occupational / Q000517:prevention & control*; D012015:Reference Standards; D012306:Risk
International standard ISO 1999: dieci anni dopo.