Sky Bear Technical Standards - Home
Search
×
FR

Placeholder headline

This is just a placeholder headline

B51-14 (R2019) – Boiler, pressure vessel, and pressure piping code

$

362

BUY NOW

ISO 389:2009

ISO 389:2009 Acoustics – Reference zero for the calibration of audiometric equipment – Part 9: Preferred test conditions for the determination of reference hearing threshold levels

CDN $129.00

SKU: 5ccb6d93acc5 Categories: ,

Description

ISO 389-9:2009 specifies test conditions for determining the hearing thresholds of subjects for the purpose of establishing standardized values for reference hearing threshold levels.

Edition

1

Published Date

2009-05-07

Status

PUBLISHED

Pages

9

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

ISO 389-9:2009 specifies test conditions for determining the hearing thresholds of subjects for the purpose of establishing standardized values for reference hearing threshold levels.

Previous Editions

Can’t find what you are looking for?

Please contact us at: