Refrigerator Model:HBC-70/200(India)49Maintenance Service and Trouble Shooting12.6.16 How to determine that the sound is noise ornormal?Answer: Normally speaking, refrigerator noise within the range of nationalstandard is normal. But if there is continuous sound of metal contactingfrom compressor, please check and solve the problem in time.12.7 National standard for noiseThere are stipulations in Items 6.5.7.1 and 6.3.6.1.of GB/T 8059.3-1995.12.7.1 When refrigerator is running for freezing, there willbe no obvious noise?The noise of sound power level of refrigerator with the volume 250L andbelow, measuring according to the stipulations in item 6.3.6.1, will notgreater than 52dB(A).Sound power level noise of freezing refrigerator with fan300L below ≤55dB(A)300-400L(including 400L) ≤60dB(A)401-500L(including 500L) ≤63dB(A)PDF created with pdfFactory trial version www.pdffactory.com