ISO 1999:1990

Acoustics — Determination of occupational noise exposure and estimation of noise-induced hearing impairment

Datum objavljivanja: 18. 1. 1990.

95.99 Povučen 23. 9. 2013.

Опште информације

Trenutna faza: 95.99 Effective date: 23. 9. 2013.

Inicijator: ISO

Pripada: ISO/TC 43/SC 1

Vrsta: Međunarodni standard

ICS: 13.140

Jezik: francuski engleski

Kupovina

Status: Povučen

PDF

Papir

PDF i papir

Jezik

Jezik na kome želite da primite dokument.

Apstrakt

Prescribes a practical relation for these quanitities expressed as A-weighted noise level in dB and duration of exposure within a normal working week (40 hours) and the percentage of personnel that is to be expected to obtain a raised hearing threshold of 25 dB or more as a result of this exposure, averaged from 500, 1000 and 2000 Hz.