Shenzhen United Testing Technology Co., Ltd

 In the current globalization of the automobile industry, the export business of car keys has a broad prospect.  Hyundai car keys are no longer limited to the traditional mechanical structure, and wireless function has become the core competitiveness, which can realize remote unlocking, engine starting, car searching and other operations, greatly improving the convenience of use.  The export of car keys requires strict compliance with wireless functionality standards and testing protocols.  Different countries and regions enforce stringent regulations regarding wireless frequency bands and power limits, such as the CE-RED certification and the U.S. FCC standard.  Products must undergo comprehensive testing including electromagnetic compatibility (EMC), radio frequency performance, and wireless security evaluations to prevent signal interference and ensure public communication order. If the products are exported without passing the test, they may face risks such ...

 Car-mounted portable WiFi FCC ID certification is a mandatory compliance certification required by the FEDERAL Communications Commission (FCC) for radio equipment entering the U.S. market. This certification passes the strict testing of key indicators such as electromagnetic compatibility and radio frequency transmission power of equipment to ensure that the products will not cause interference to other radio equipment and ensure the security of public communication. For in-car WiFi, FCC ID authentication is of great significance.  It is not only a "passport" for products to enter the US market, but also reflects the stable communication capability of products in complex in-car environment. The certified equipment has been professionally verified for signal transmission efficiency and anti-interference performance, which can provide users with continuous and stable network services during driving.  The certification process involves application, testing, and review. The ...

The wireless microphone in the car KTV and the clear sound quality during the call are hidden behind a key threshold ——CE-RED certification. The European market has increasingly strict requirements on the spectrum efficiency and electromagnetic compatibility of wireless equipment. Products that fail to pass the certification may face detention and fines once found.  In the test standard, radiation power, anti-interference ability and frequency band compliance are all hard indicators. For example, in the car scene, will the microphone interfere with the navigation signal?  Will it be drowned out by other devices during the call?  All these need to be verified one by one in the authentication process.

If your digital key product (Bluetooth/NFC/UWB all count!) wants to enter the EU market, CE-RED certification is a hard threshold! This is not an option, it is a must! These three key tests and certifications must be checked! 1. Is the radio frequency performance stable?  The signal strength, frequency range and bandwidth of Bluetooth/NFC/UWB must be accurate and compliant, and should not "deviate" to interfere with others. 2. Is the data security enough?  The key is connected to the car/door, information transmission encryption, anti-eavesdropping, anti-cracking, and security testing is the top priority! 3. Is electromagnetic compatibility ok?  Your key should not interfere with other devices (such as mobile phones), nor should it be easily interfered with by other devices to cause failure! Ignoring RED certification?  The consequences are very direct: products are returned, removed from shelves, and even fined!  Lost business opportunities and real money! The ...

Test of metal migration in rubber products intended for reuse in food contact materials The test standard is: US FDA 21 CRF 177.2600 Main equipment used in the test: water bath heater, inductively coupled plasma emission spectrometer (ICP-OES) State adjustment of the sample: The sample should be placed in an environment of 15-30℃ temperature and 40%-80% relative humidity for 24h (Here you can take a thermometer and a sample) Test process: According to the actual use conditions of the samples, the silica gel tableware was placed in a beaker, and an appropriate amount of deionized water was added. The silica gel tableware was heated at a constant temperature in a 40℃ water bath heater for 1 hour. After 1 hour, it was taken out and cooled to room temperature for testing Now start the on-board test, open the inductively coupled plasma emission spectrometer and stabilize the instrument. After the instrument is stabilized, the analysis will be carried out A. Analyze the standard elements and...

 Is your plastic brittle?  Is your paint fading?  Is your rubber cracking?  Is your product afraid of "death in the light"? Ultraviolet rays in sunlight are the "invisible killer" of non-metallic materials! How many days will it age outdoors?  Performance drops sharply?  Constant customer complaints?  The root cause may be here! Don't let the hard work of developing a product destroyed in the last step! Fluorescent UV aging test is the litmus test of your product's sun resistance ability!  It can accurately simulate the most damaging ultraviolet band of the material, and quickly "aging" your material in the laboratory. Common international test standards include: GB/T 16422.3 ISO 4892-3 ASTM G154

 As the core liquid cooling and heat dissipation component of AI server, liquid cooling plate (Cold Plate) will be directly assembled on high-heat chips such as GPU, CPU and AI acceleration chip, and heat can be efficiently exported by liquid circulation. The main test items of the liquid cooling plate include: Thermal performance test: Thermal resistance test, flow-pressure drop characteristic test, heat dissipation capacity test, uniformity test, etc reliability test ： Pressure cycle test, thermal shock test, long-term aging test, vibration test, salt spray test Seal and leak test: Air tightness test, liquid pressure test, burst pressure test Material compatibility and cleanliness test: Compatibility test, cleanliness test and leaching test Electrical safety test: Insulation resistance test, voltage withstand test Mechanical properties and dimensions test: Flatness test, installation hole position accuracy test, mechanical strength test Our thermal management laboratory is equipp...