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GB/T 20247-2006 Translated English Acoustics - Measurement of Sound Absorption in a Reverberation Room

GB/T 20247-2006 Translated English Acoustics - Measurement of Sound Absorption in a Reverberation Room

 Standard No.: GB/T 20247-2006
English Name: Acoustics - Measurement of Sound Absorption in a Reverberation Room
Chinese Name: 声学 混响室吸声测量
Issued by: AQSIQ and SAC
Issued on: 2006-5-8
Implemented on: 2006-11-1
Language: English
File Format: PDF
Delivery: Immediate delivery

 1 SCOPE

 This Standard specifies a method of measuring the sound absorption coefficient of acoustical materials used as wall or ceiling treatments, or the equivalent sound absorption area of objects, such as furniture, persons or space absorbers, in a reverberation room. It is not intended to be used for measuring the absorption characteristics of weakly damped resonators.
The results obtained can be used for comparison purposes and for design calculation with respect to room acoustics and noise control.

 2 NORMATIVE REFERENCES

 The following standards contain provisions which through reference in this text, constitute provisions of this Standard. For dated references, subsequent amendments (corrigenda excluded) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the Standards indicated below. For undated references, the latest edition of the applicable Standards referred to apply.
GB/T 3240-1982 Preferred Frequencies for the Acoustical Measurement
GB/T 3241 Octave-band and Fractional-octave-band Filters (GB/T 3241-1998, eqv IEC 61260:1995)
GB/T 17247.1 Acoustics--Attenuation of Sound during Propagation Outdoors--Part 1: Calculation of the Absorption of Sound by the Atmosphere (GB/T 17247. 1-2000, eqv ISO 9613-1:1993)

 3 TERMS AND DEFINITIONS

 For the purposes of this Standard, the following terms and definitions apply.
-----------
> The above standard is Readily Available in English. Immediate delivery after receiving payment.
> Purchase Process:
Inquiry - Quotation/Profoma Invoice - Send Sample Pages - Immediate Delivery after Payment.
-----------------------------------------------------------------------------------
Please contact chinaautoregs@gmail.com or sales@chinaautoregs.com for the Complete English Translated Version of Chinese Standard in PDF/WORD Format.

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