The 715th Research Institute was established in 1958 and is located in Hangzhou, Zhejiang Province. It mainly engages in the research, development, and production of underwater acoustic electronic equipment and marine instruments. It is currently a key backbone research institute for the development and production of sonar equipment in the largest and strongest regions of China, and a government level public institution. The entire institute covers an area of more than 450 acres and is equipped with important technical institutions such as the National Defense Hydroacoustic Measurement Level I Station and the Sonar Technology National Defense Science and Technology Key Laboratory. It has a number of first-class domestic acoustic research facilities, including the Biggest indoor medium and low frequency noise reduction test pool and the lake based acoustic testing ship. It is the domestic centralized unit of the International Electrotechnical Commission (IEC) Hydroacoustic Ultrasonic Standard Technical Committee, the station director unit of China's Hydroacoustic Technology Information Website, and the chairman unit of the Zhejiang Acoustic Society.
Odor components | Odor inlet indicators | Odor discharge indicators | Exhaust pipe height |
H2S | ≤100mg/m3 | ≤0.6kg/h | 15m |
NH3 | ≤40mg/m3 | ≤0.6kg/h | |
C2H6S | ≤50mg/m3 | ≤0.6kg/h | |
Odour | ≤3000 | ≤800 |