Summary: The business scope of Suzhou Mtt Testing International Co., Ltd. includes inspection and testing, and certification services for electronic products, communication equipment, medical devices, new energy products, cosmetics, biological products, food, drugs, and clean rooms; engaging in technology development, technology transfer, technology consultation, and technology services in the fields of testing technology, biomedicine, and medical devices; enterprise management consultation and business information consultation. (Projects that must be approved according to the law can only be operated after being approved by the relevant departments.)

The semi-anechoic chamber is not only a special laboratory for acoustic testing but also an important part of the testing system. In fact, it is also one of the acoustic testing equipment, and its acoustic performance indicators directly affect the testing accuracy.For detailed information on specific acoustic design, manufacturing, construction, installation, and on-site actual measurement and acceptance introduction, etc., please pay attention to browsing the project cases on the official website of our firm, or scan the QR code of the WeChat public service account of our enterprise to get free push notifications. For detailed materials, please go to the download center on the official website of our corporation to download them for free.

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I. Purchasing Content
Semi-anechoic chamber
II. Basis Standards
(1) GB/T 6882 "Acoustics - Determination of Sound Power Levels of Noise Sources - Precision Methods for Anechoic and Hemianechoic Chambers";
(2) ISO 3745 "Acoustics - Determination of Sound Power Levels of Noise Sources - Precision Methods for Anechoic and Hemianechoic Chambers".
III. Main Indicators and Project Content (Effective Space and Background Noise, etc.)

1. The size and precision of the semi-anechoic chamber after construction shall meet the requirements of the contract agreed upon by both parties.

2. When the external environment is in normal operation and there is no interference from abnormal low-frequency noise sources around, the indoor background noise of the semi-anechoic chamber is Lgn (A) ≤ 13.5dB (A).

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