ISO 5136:1990

Acoustics — Determination of sound power radiated into a duct by fans — In-duct method

Publication date: Dec 6, 1990

95.99 Withdrawal of Standard Mar 31, 2003

General information

Current stage: 95.99 Effective date: Mar 31, 2003

Originator: ISO

Owner: ISO/TC 43/SC 1

Type: International Standard

ICS: 91.120.20

Languages: French English

Buying

Status: Withdrawn

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Scope

Gives a method for testing ducted fans. Applies to fans which emit steady, broadband, narrow-band and discrete-frequency sound. Applies to air temperatures between -50 °C and +70 °C. The test duct diameter range is from 0,15 m to 2 m. The maximum flow velocity is 30 m/s and the maximum swirl angle is 15°. An example of a method for determining the angle of swirl is given in annex F. The one-third octave band centre frequency range is from 50 Hz to 10 000 Hz.

Life cycle

NOW

WITHDRAWN
ISO 5136:1990
95.99 Withdrawal of Standard
Mar 31, 2003

CORRIGENDA / AMENDMENTS

WITHDRAWN
ISO 5136:1990/Cor 1:1993

REVISED BY

PUBLISHED
ISO 5136:2003