Shenzhen United Testing Technology Co., Ltd

 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...

  Salt spray corrosion test is to put brake discs, fasteners, electroplated ornaments and other auto parts into the "artificial salt spray room", and spray salt spray for 48h,96h or even 1000h continuously, to see whether they will rust, bubble or fall off the coating. Simply put, it is to help you "condense" the harsh environment of the seaside and snow melting salt into the laboratory in advance, so that defects can be exposed in advance and the service life of products can be extended. Different brands and different parts have different requirements. Therefore, manufacturers must clarify their own testing standards in the development stage. —— Salt spray concentration, temperature and humidity, and grade determination can not be omitted.

 In the smart home industry, FCC certification stands as an indispensable requirement for all manufacturers.   The Federal Communications Commission (FCC) in the United States established this standard to ensure electronic devices meet stringent requirements regarding electromagnetic compatibility and radio frequency interference.   For smart home products—including smart speakers, lighting systems, and security devices—only through FCC certification can they demonstrate safety and reliability in terms of electromagnetic radiation and signal interference. FCC certification not only determines whether a product can enter the U.S. market, but also serves as a symbol of quality and safety.   It requires manufacturers to conduct a series of professional tests, including electromagnetic interference (EMI) and electromagnetic susceptibility (EMS) evaluations, to ensure stable operation in complex electromagnetic environments. These tests guarantee that the p...

Do you know why some non-metallic materials become brittle, fade or even deform after a long time of use? In fact, it is all caused by ultraviolet light! Long-term exposure to ultraviolet light will quietly change the molecular structure of non-metallic materials, affecting its performance and life. Fluorescent UV testing is very important!  It can simulate the environment of ultraviolet light and help us "predict" the aging degree of materials in advance. Dear manufacturers, this is no small matter!  If the product does not pass this test, it may not be long before there is a problem, and then the brand will be ruined. In addition, the market competition is so fierce now, products that meet the testing standards are the real "hard currency", can win more customers' trust.

 The price difference for RoHS testing of the same product is 10 times. How to choose ROHS testing? Key charging factors: Select the detection range (4 items for basic, 6 items for extended, and full EU set) Product material classification (single material/composite material/special coating) Urgent service requirements (conventional 5 days / urgent 48 hours) Report certification level (general report /CNAS international certification)

 Today I will tell you what the cost of RoHS testing is, after reading it, I am sure you will have a clear idea!  The charging difference mainly depends on three key points: The first is the number of tests, whether it is the basic four items, or the more comprehensive 10 items, or the full set of tests Second, the complexity of sample material, metal, plastic or mixed materials, different materials can be different in detection difficulty The third is whether to have a CNAS certification report, which is the "golden signboard" of the test report. With it, the report will be more authoritative.

 The market is now filled with a wide variety of products, but their quality varies greatly. Drop testing is a crucial step in assessing product quality.  Many manufacturers may not realize that this test is essential. It simulates the potential drop scenarios a product might encounter in real-world use, allowing for early detection of issues, preventing after-sales disputes, and enhancing product competitiveness. Conducting a reliability drop test is not difficult. First, the manufacturer must clarify whether their product standards are based on national, industry, or company standards.  Different standards have varying levels of strictness and focus.  Next, choose a reputable and qualified testing institution. They will develop a detailed test plan based on your product and standards, including parameters such as drop height, frequency, and angle.  During the testing process, the manufacturer can also be involved to monitor the product's performance.