Noise Testing

Noise refers to a kind of sound that causes psychological or physiological displeasure to people. In the worst case, it may cause hearing damage or illness, disturb people’s normal life and work. Therefore, it is necessary to monitor the noise level of products and reduce the influence that may be caused to the human mentality. The compulsory standard GB 19606-2004 (Noise limit value for household and similar electrical appliances) was issued in 2004. The European Union has issued the regulation of noise 2000/14/EC (Noise emission in the environment by equipment for use outdoors). The ENERGY STAR of U.S. has also issued compulsory regulation for the loudness of relevant products.
Product Scope
Household appliance
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Auto parts
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Electrical tools
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Marine/fishing equipments
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Lighting products
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IT equipments
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AV equipments
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Medical equipments
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Toys
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Wireless products
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Electrical accessories
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Test Items:
Sound pressure level measurement |
GB/T 7725、GB/T 19232、GB/T 2888、ISO 7779、ISO 5802 |
Sound power level measurement |
GB 19606、GB/T 18313、GB/T 6882、GB/T 4214 series、GB/T 10069 series、IEC 60704 series、IEC 60034-14、JIS C 9613、BSEN 12102 |
a/v/s |
GB 10068、JB/T 10490、IEC 60034-14、EN 60745、EN 61029 |
CPB、FFT、Overall Analysis |
GB 9068、B21 7120、YD/T 1816、C-S1-9700
Technical requirement of enterprises |
Pure tone and pulse measurement |
GB/T 18313、ISO 7779、ECMA-74、ETS 300753 |
Sound absorption coefficient measurement/Acoustic impedance measurement |
GB/T 18696、GB/T 16731、ASTM E 1050、ASTM C 423、ISO 10534-2、ISO 354、JIS A 1405-2、EDS-T-9322、MS 200 |
CVC is the chairman organization of the Technical Subcommittee on Testing of Climate of the National Technical Committee on Environmental Conditions and Methods of Test for Electric and Electronic Product of Standardization Committee, Testing Center of Environmental Adaptability for Mechanical Industry, PTP of low temperature testing of CNAS. Testing service team of high efficiency will provide the most professional service to our partners
4.Test Equipments and Facilities |
CVC has two semi-anechoic test chambers, the characteristics of sound field of which comply with the requirement of ISO 3745, and the noise of background of which can be lower than 12dB (A) . At the same time, the working condition of temperature and humidity inside can be adjusted, which can comply with the requirement of the low noise measurement under the designated condition and reach the internationally advanced level in the area of noise measurement. CVC can offer measurement services such as sound pressure, sound power, vibration, acoustic absorptivity, coefficient of reflection, acoustic impedance, pure tone and pulse using world-class B&K high-precision measuring instrument, testing and analysis of CPB, FFT and Overall, and help enterprises to carry out the risk assessment for the noise value of series of products. 


5.Other Value-added Services |
As one of the largest testing and evaluation authorities with the longest history and the strongest power, CVC can provide:
Comprehensive testing and evaluation services of safety, performance, EMC, material and environment of products such as household appliances, vehicle and auto parts, electric accessories, compressors, motors, lighting products, welding machines, electronic appliances, batteries, toys, mechanical appliances, internal combustion engines.
Through quality service assurance of industrial chain such as certification of products and system, calibration, inspection, training, service of standards and industries, proficiency test, technical consultation, CVC helps our partners to keep their competitive advantages.
CVC-Guangzhou(Headquarter)
Contact:Mr.Jian, Ms.Lan
Tel:020-32058389,020-32290964
Fax:020-32293889-3784
E-mail:jianwb@cvc.org.cn,lanxin@cvc.org.cn
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CVC-Zhongshan
Contact:Mr.Chen, Ms.Zhou
Tel:0760-23380623,0760-23380023
Fax:0760-23380886
E-mail:chenxh@cvc.org.cn,zhoucn@cvc.org.cn
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CVC-Jiaxing
Contact:Mr.Wu
Tel:0573-82586257
Fax:0573-82586885
E-mail:wuzy@cvc.org.cn
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CVC-Wuhan
Contact:Mr.Li, Ms.Cao
Tel:027-84777155,027-84845096-839
Fax:027-84844620
E-mail:office_wuhan@cvc.org.cn
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CVC-Hong Kong
Contact:Mr.Chen, Mr.Lo
Tel:00852-26074180,18926128940
00852-95103448,14716143448
Fax:00852-26074355
E-mail:leechen@cvc.org.cn,laodw@cvc.org.cn
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CVC-International Business
Contact:Alex Wei
Tel:020-32368069
Fax:020-32293700
E-mail:weiqy@cvc.org.cn
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