Shenzhen United Testing Technology Co., Ltd

  Lamp reliability Salt spray test is an environmental test used to assess the corrosion resistance of lamps and their materials in a salty wet environment. This test usually simulates the corrosion conditions in a marine environment or an industrial polluted environment to ensure that the lamp can resist corrosion in practical use and maintain its function and appearance. During the test, the lamp sample is placed in a closed test room, where a certain concentration of saline solution is continuously sprayed to form a salt spray. Testing usually lasts for a certain period of time, depending on the test requirements and product standards.

  Relative to the international standards, the American UL security standards have their own system, which are very different from the international standards. Nowadays, there are 5 safety standards for household appliances coordinated by UL and IEC, namely: UL 60335-1 (general safety), UL 60335-2-3 (electric iron), UL 60335-2-8 (electric razor, electric shear), UL 60335-2-24 (refrigerator, ice machine), UL 60335-2-34 (motor-compressor) The main differences between the UL standards and the IEC standards are: Different requirements for electric shock protection and fire prevention: IEC standard is based on the AC voltage of 220~240V, the design requirements for electric shock protection are high, that is, the electrical insulation performance and electrical clearance of materials and structures are strict; and the voltage of North American electrical appliances is 110~120V, plus the building structure is mostly wood, so the UL standard in fire protection requirements are relatively ...

  SRRC Certification is a mandatory certification of radio transmission equipment in China to ensure its spectrum use compliance and avoid interference. Products required for certification include: 1. Wireless communication equipment: mobile phones, routers, Bluetooth headset, etc. 2. Wireless remote control: toys, drones. 3. Wireless microphone and amplification system. 4. Radio navigation equipment. 5. Radio intercom. 6. Radio broadcasting and transmitting equipment. 7. Other radio-spectrum equipment. It shall not be sold and used in China without SRRC certification.

  Photographic light is an auxiliary light source designed specifically for photography and camera photography to provide enough illumination in a low light environment to help photographers obtain clear and realistic images when shooting. They include many types, such as flash and regular lights, each with its specific advantages and applicable scenarios. Photographic lamp is generally connected to the city electricity power supply, safety and electromagnetic compatibility performance is very important. The EU CE needs to be done according to the lamp standard EN55015, EN61547, EN60598-2-17 test; Do American FCC SDOC needs to follow the FCC PART15B test. We are United testing lab from China. We have passed ISO17025, and have SAA, CNAS, CMA and A2LA authorization, Contact us if you need.

  1. The EU RoHS Directive 2015 / 863 / EU is the core regulation of the RoHS certification, which sets limits for 10 harmful substances. 2. IEC 62321:2008, the Determination of Hazardous Substances in Electrical and Electronic Products, is an important technical reference standard for RoHS testing, and specifies the sampling and testing methods of different harmful substances. 3. EN 50581:2012, The Compliance Assessment of Hazardous Substances Limit in Electrical and Electronic Products, is an important basis document to judge whether the product meets the RoHS directive. 4. IPC-1752A: The standard specifies the labeling requirements of the RoHS certified products, including the location and size of the RoHS marks on the product and the labeling content of the components. www.uni-lab.hk/

RoHS , short for Restriction of Hazardous Substances ,   is a certification for limiting the use of certain harmful substances in electrical and electronic products. The main purpose of RoHS certification: is to limit the use of 10 harmful substances of lead, mercury, cadmium, hexavalent chromium, PBDE and PBBs, tetra-brominated diphenyl ether, polychlorinated biphenyl, short chain chlorofaffin, tributybutyl tin composition in electrical and electronic products, in order to reduce the harm of these substances to human health and the environment. Test method and equipment of RoHS: 1. ICP-OES Induction-coupled plasma emission spectroscopy, which is the most commonly used method in RoHS detection, is mainly used for the detection of lead, chromium, cadmium and other metal elements. The principle is to atomize the sample solution and produce plasma, for qualitative and quantitative analysis through the elemental characteristic emission spectra. 2. ICP-MS Induction-coupled plasma mass s...