0 Stavka
Moj nalog
Telefon: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Prodaja standarda: prodaja@iss.rs Seminari, obuke: iss-edukacija@iss.rs Informacije o standardima: infocentar@iss.rs
Stevana Brakusa 2, 11030 Beograd
Glavni meni

ISO 4869-1:1990

Acoustics — Hearing protectors — Part 1: Subjective method for the measurement of sound attenuation
20. 12. 1990.
95.99   Povučen   4. 10. 2018.

Опште информације

95.99     4. 10. 2018.

ISO

ISO/TC 43/SC 1

Međunarodni standard

13.340.20  

francuski   engleski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

Specifies a method for measuring sound attenuation at the threshold of hearing. The procedure is designed to yield values close to the maximum attenuation which are not normally attained under field conditions. The values reflect the attenuating characteristics only to the extent that users wear the device in the same manner as did the test subjects. Data are collected at low sound pressure levels but which are also representative of the values at higher sound pressure levels.

Životni ciklus

PRETHODNO

POVUČEN
ISO 4869:1981

TRENUTNO

POVUČEN
ISO 4869-1:1990
95.99 Povučen
4. 10. 2018.

REVIDIRAN OD

NAPUŠTEN
ISO/PWI 4869-1

OBJAVLJEN
ISO 4869-1:2018