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        Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels (ISO 389-9:2009)
          Automatically translated name:
          ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - PART 9: PREFERRED TEST CONDITIONS FOR THE DETERMINATION OF REFERENCE HEARING THRESHOLD LEVELS (ISO 389-9:2009)        
      
STANDARD published on 13.1.2010
    
        Designation standards: UNE-EN ISO 389-9:2010
                
                
                
               
                Publication date standards:  13.1.2010
                  SKU:  NS-565956
          The number of pages: 17
Approximate weight : 51 g (0.11 lbs)
        Country:          Spanish technical standard
        Category: Technical standards UNE
        
                
              
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