An Overview Of Standards For Sound Power Determination

ISO 3742 Precision method for discrete frequency and narrow band sources in reverberation rooms ISO 3743 Engineering methods for special reverberation test rooms

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Acoustics, Ed. 2, Vol. 1 Page 2 of 3 ISO 3742:1988 Acoustics – Determination of sound power levels of noise sources – Precision methods for discrete-frequency and ...

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Determination Of Sound Power Based On Sound Pressure

tion of frequency are stored in a ISO 3741 and ISO 3742 describe two source and background noise measure-file on disc. Where parameters methods, ...

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International iso Standard 3741 - Sai Global

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ECMA-74 specifies procedures for measuring sound power level based on ISO 3740, ISO 3741, ISO 3742, ISO 3744 and ISO 3745 (reverberation room or hemi-anechoic room) ...

Methods Of Measurement Of Airborne Noise Emitted By

This part of ISO 1680 applies to the measurement of airborne noise from rotating electrical machines, such as motors and generators ... ISO 3742, Acoustics ...

Acoustic Analysis Of Machineries In The Cement Industry

The measuring units in the plant are main stone crusher, row material mill, pre heater, ... [18] -[21] and ISO 3741, ISO 3742, ISO 3743 and ISO 3745 [22]-[25] ...

As 3755-1990 Acoustics-measurement Of Airborne Noise

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Depliant Fc Ok - Bps Clima Ventilconvettori, Fan-coil

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As 1081.1-1990 Acoustics-measurement Of Airborne Noise

ISO 1680/1: 1986 Australian Standard Acoustics—Measurement of ... 3742 Acoustics—Determination of sound power levels of noise sources—Precision methods for

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Dati Tecnici - Technical Data

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Dati Tecnici - Technical Data - Bps Clima Ventilconvettori

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Free field sound pressure, 2 m distance. Data calculated based on sound power measured in riverberation room ref. ISO 3741 - ISO 3742 standards. (7) Electrical data:

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4 = sound power conforming to ISO 3741 and ISO 3742 5 = Sound pressure level measured at a distance of 1 m with a directivity factor of 4

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2 Tubi (1 Batteria) 2 Pipe (1 Coil) - Sisil Italia

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Elfo Space Wall 3÷17 - Clivlet.lt

measured in echo chamber to ISO 3741 - ISO 3742 Data referred to the following conditions: Sizes Length (A) mm Width (B) mm Height (C) mm (A1) mm (A2) mm (C1) mm (C2) mm

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Valori calcolati da potenza sonora rilevata in camera riverberante rif. norme ISO 3741 - ISO 3742. (7) Dati elettrici: Valori rilevati con Wattmetro Jokogawa WT 110.

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Hvac Ventilator-convectoren

Data calculated based on sound power measured in riverberation room ref. ISO 3741 - ISO 3742 standards. (7) Electrical data: Measurements with Wattmeter Jokogawa WT 110.

Hvac Ventilator-convectoren

HVAC ventilator-convectoren Type FX-VA / VB / VC ... Data calculated based on sound power measured in riverberation room ref. ISO 3741 - ISO 3742 standards. (7) ...

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sion levels related to ISO 3742 - 3746 (sound power levels, emission sound pressure levels) with frequency spectra ...

70 950 625 4 Tubi (2 Batterie) 525 950 4 Pipe (2 Coils

... Free field sound pressure, 2 m distance. Data calculated based on sound power measured in riverberation room ref. ISO 3741 - ISO 3742 standards. (7) ...

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stone crusher, row material mill, pre heater, kiln, kiln to cement mill conve ... ISO 3742:1988. Acoustics-determination of sound power levels of noise sources-

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Elfo Space Out-v E Out-h 3÷31 - Clivlet.lt

ELFO SPACE OUT-V e OUT-H 3÷31 ELFO SPACE ELFO SPACE OUT-H H 2O-(6) 3 R3 (1) TR ... chamber to ISO 3741 - ISO 3742 Data referred to the following conditions: Sizes ...

Wall Fan-coil Units - Mech-elec

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