Measured at least 3.5 m from any reflector (except the ground), the height from the ground is1.2 m. ..
2. Outdoor in noise-sensitive buildings
Outside noise-sensitive structures, the distance from the wall or window 1 m, and the height from the ground1.2m.
3. Indoor noise-sensitive structures
At least 1 m away from the wall and other reflecting surfaces, about 1.5 m away from the window, and 1.2 m away from the ground to 1.5 m high.
Extended data
Central nervous system
The current national standards in China are GB 3096-2008 "Quality Standard of Acoustic Environment" and GB 22337-2008 "Environmental Noise of Social Life". Among them, the Standard for Acoustic Environmental Quality stipulates the environmental noise limits and measurement methods of five types of acoustic environmental functional areas, which are applicable to the evaluation and management of acoustic environmental quality, but not applicable to the areas around the airport affected by the noise of aircraft passing (take-off, landing and low-altitude flight);
"Environmental Noise of Social Life" stipulates the boundary noise emission limits and measurement methods of equipment and facilities that may produce environmental noise pollution in commercial and cultural places and business activities, and is applicable to the management, evaluation and control of noise generated by them.
Environmental noise is harmful to people's work and rest. When people are troubled by noise problems, they can first invite relevant testing institutions with national qualifications to carry out systematic and scientific testing on environmental noise or indoor noise.
After receiving the legally binding test report, if it is found that the noise does exceed the standard, you can complain to the property management company or the local department specializing in noise pollution (such as the Ministry of Environmental Protection), and the environmental protection department will deal with the noise exceeding the standard according to the national environmental protection standards and relevant laws.
The Institute of Acoustics of China Institute of Testing Technology, the first national legal metrology institute in Sichuan Province to apply for the qualification of low-frequency noise detection, advocates national standards to the general public to provide standard support for the detection and control of environmental noise;
Once people are troubled by environmental noise, or feel that their residence may exceed the specified decibel value, the owners should safeguard their legitimate rights and interests, and can apply to relevant units with testing and arbitration qualifications for testing. Relevant units will also carry out testing according to national standards to give everyone a quiet environment.
References:
Baidu Encyclopedia-Environmental Noise Standard