With the development of modern society, the noise detection, the noise has an impact on our lives and health of important environmental issues, also known as the city's new public nuisance. Including industrial enterprises noise noise, environmental noise, workplace noise and environmental noise for construction site plant boundary. Boundary of industrial enterprises of environmental noise: refers to the use in the industrial production activities and other fixed equipment generated interference sound living environment surrounding the measurement and control of the plant boundary. Construction Site Noise divided into daytime and nighttime noise limits. Social life noise: mainly refers to the noise generated by people in business transactions, sports competitions, processions and assemblies, * places in various social activities, noisy sound. Test items: industrial enterprises factory noise, environmental noise, social noise. Laws, regulations, detection methods based on "People's Republic of China Environmental Protection Law", "People's Republic of China Environmental Noise Pollution Prevention Law", "industrial enterprises of environmental noise emission standard factory sector," Jiaxing Branch Detection Technology Services Ltd. (Jiaxing Branch detection) by Guangzhou Branch Detection Technology Services Ltd., Zhejiang Academy of Sciences Institute of Technology Application, Zhejiang Xing Branch Technology Development Investment Co., Ltd. is jointly funded and co-organized, on February 26, 2013 to complete the business registration. Jiaxing Branch detection as an independent third-party testing organization, but also the Chinese Academy of Sciences Institute of Applied Technology, Zhejiang test analysis center platform, relying on Guangzhou Branch Detection Technology Services Ltd. has accumulated 50 years of management experience and technology (through the National Measurement Accreditation (CMA Certification ), food testing qualification (CMAF certification)), to carry out monitoring and measuring the quality of testing, inspection and supervision of government departments, research institutes, research and development and technological innovation, industrial and mining of raw materials and finished products analysis and testing to provide technical support and solve key technology problems.