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ISO 5136:1990

Acoustics — Determination of sound power radiated into a duct by fans — In-duct method
6. 12. 1990.
95.99   Povučen   31. 3. 2003.

Опште информације

95.99     31. 3. 2003.

ISO

ISO/TC 43/SC 1

Međunarodni standard

91.120.20  

francuski   engleski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

TRENUTNO

POVUČEN
ISO 5136:1990
95.99 Povučen
31. 3. 2003.

ISPRAVKE / IZMENE

POVUČEN
ISO 5136:1990/Cor 1:1993

REVIDIRAN OD

OBJAVLJEN
ISO 5136:2003