VRIJE UNIVERSITEIT BRUSSEL Acoustics - the Dept. of ...

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124CHAPTER 7. DIRECTIVE 2000/14/EG: ’MACHINES INOPEN AIR’chainsaws, pressure washers, leaf blowers, concrete mixers, choppers,etc.with guaranteed sound power level meaning : the measured sound powerlevel including the uncertainties due to the variations in the production andthe measuring methods.A detailed description of all machines and specific measurement methodsfor the sound power is given in Appendix 1 of the guideline. The guidelineonly concerns equipment that is put on the market or is used as a whole.Non powered parts that are put on the market, or are being used separately,are not considered in the directive.The guideline is not applicable to :Equipment that is primarily used for the transport of goods or personsover the road, by railway, by air or over water.Equipment for military or police use or for emergency services.For machines named in Article 12, a list is included in the guidelines withacceptable sound power levels. (an extract from this list can be found inFigure 7.1). In function of the power of the machine a different acceptablelevel is defined. Next to limits on the produced sound power there are a fewother measures that must be taken for machines in Article 12 :Assessment procedures before bringing the product on the market.CE marking of the product with guaranteed L w (see Figure 7.2).A written EG-declaration of conformity must be available.Technical documentation (with measurements) must be available.The documentation should be assessed by by a certified body (companieslike Vincotte, SGS, etc.).Periodicalproductioninspectionsshouldbeperformedbycertifiedbodies.The EG-declaration of conformity must contain the following data:Nameandaddressofthemanufacturer orhisauthorizedrepresentative.Name and address of the person who stores the technical documentation.Detailed description of the equipment.
125Followed conformity assessment procedures and optionally the nameand address of the involved certifying body.Measured sound power level of a machine that is representative for thistype of equipment.Guaranteed sound power level of the equipment.A reference to the EU 2000/14/EG guideline.A declaration that this equipment is conform the prescriptions of theguideline.If applicable, the declaration(s) of conformity and references to othercommunity guidelines that are applied.Place and data of the declaration.Name, address and date of birth of the person who is authorized to signthe declaration for the manufacturer or his authorized representative.For the machines listed in Article 13, the first four measures are the sameas for those in Article 12. The last two requirements are less strict however :The assessment of the technical documentation may be done by themanufacturer of the machine.The manufacturer can inspect the production himself.Figure 7.1: Example of the acceptable sound power levels as described inappendix 1 of the guideline 2000/14/EG.
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VRIJE UNIVERSITEITBRUSSELAcousticsB
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iiWhen sound becomes noise, it will
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ContentsI Introduction to acoustics
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CONTENTSvii4.3 Measuring the acoust
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Part IIntroduction to acoustics1
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4 CHAPTER 1. FUNDAMENTAL CONCEPTS O
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10 CHAPTER 1. FUNDAMENTAL CONCEPTS
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24 CHAPTER 2. THE HUMAN HEARING SYS
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36 CHAPTER 3. MEASURING SOUNDFigure
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44 CHAPTER 3. MEASURING SOUNDfactor
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50 CHAPTER 3. MEASURING SOUNDFor ex
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52 CHAPTER 3. MEASURING SOUNDderiva
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54 CHAPTER 3. MEASURING SOUNDThe so
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56 CHAPTER 3. MEASURING SOUND
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Chapter 4Sound AbsorptionAll(constr
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4.1. ACOUSTIC TRANSMISSION BETWEEN
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4.1. ACOUSTIC TRANSMISSION BETWEEN
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4.2. REALIZATION OF ACOUSTIC ABSORP
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4.3. MEASURING THE ACOUSTIC ABSORPT
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