Shenzhen United Testing Technology Co., Ltd

UN38.3 is the test standard. Full name is in the United Nations for dangerous goods transportation "United Nations dangerous goods transportation test and standard manual" part 338.3, namely the requirements of lithium battery transportation, must be through height simulation, high and low temperature cycle, vibration test, impact test, 55 ° C short circuit, impact test, charging test, forced discharge test, to ensure the safety of lithium battery transportation. If the lithium battery is not installed with the device and each package contains more than 24 cells or 12 batteries, then pass a 1.2 m free drop test. The UN38.3 report and the MSDS are required for lithium batteries, both by sea and by air. It should be noted that UN38. 3 needs to be tested in a designated qualified third-party testing company. MSDS can be submitted to a third party for testing or issued by the factory itself.    Usually when many people do battery testing, UN38.3 and MSDS are confused or think it ...

For UL report of microphone, including company information, product data, parts lists, electrical charts, schematic drawings, structure drawings, product photos, use instructions, safety and other items or installation instructions, etc. The specific process includes consulting for details, filling in the application form, providing the relative informations and paying, providing samples for laboratory testing, drafting a draft report for customer review after the test, and issuing a UL report after the review. Specifically, UL62368 certification mainly focuses on the following aspects: 1. Electrical performance requirements: certification requirements products such as microphones meet the relevant standards in electrical performance, such as current, voltage and power supply stability, to ensure that the product in the process of use will not be dangerous to the user. 2. Mechanical performance requirements: certification requirements of products such as microphone in mechanical streng...

The battery IEC62133 test report for batteries with battery products is conducted in accordance with the IEC62133 standard established by the International Electrotechnical Commission (IEC) to assess the safety and electrical performance of batteries under normal use and abuse conditions. T est purpose Safety performance assessment: to ensure that the battery does not cause harm to people and the environment during use. Electrical performance test: to verify whether the electrical performance of the battery meets the relevant standards and user requirements. Durability and reliability assessment: to determine the battery life and stability. IEC62133 t est process Prepare samples: select a certain number of battery samples, and conduct pretreatment, such as charging, discharging, etc., to make them in a testable state. Initial electrical performance test: Conduct the initial electrical performance test of the sample, including the detection of open-circuit voltage, charge and discharge ...

  UL 62368 is   an electrical / electronic product safety standard, also known as a IEC 62368 or a EN 62368. It is an international standard for all types of electronic and electrical equipment, including household appliances, information technology equipment, office equipment, medical equipment, audio / video equipment, and so on. UL 62368 Replacing the early UL 60950 and UL 60065 standards in 2018, UL 62368 The goal of the standard is to ensure the safety of electronic and electrical products in normal use and abnormal conditions. It focuses on the safety of the user and determines whether the product meets the safety requirements by evaluating the design, structure and materials, as well as the associated performance and testing requirements. UL 62368 Standards mainly include three aspects: 1. Overall safety design: The standard requires that the product be designed and structured to reduce risks and protect users from potential harm. This means that the electrical, mechani...

EN50155:2017 Standard test item requirements: 1 .   safety test: voltage resistance test and insulation resistance test, divided into hot and humid insulation resistance and pressure and insulation resistance and pressure at room temperature. (Mandatory requirements) 2 .   emc test: electrostatic discharge, conduction harassment, radiation harassment test, radio frequency electromagnetic field, surge test, conduction immunity test, radiation immunity, pulse group test. (Mandatory requirements) 3 .   performance test: power supply overvoltage, voltage change, power off test power supply fluctuation test, technical specifications requirements, etc. (Mandatory requirements) 4 .   environmental adaptability test: high temperature test, low temperature test, alternating humidity   test, mechanical impact test, long life vibration, functional vibration. (Mandatory requirements) 5. Other items: IP protection grade, enhanced screening, low-temperature storage test, salt...

S ummary RSL is short for the Restricted Substances List, and the RSL testing helps manufacturers and retailers ensure that their products meet rapidly changing regulations and standards. These regulations and standards define the types of chemicals and chemical substances that can be used in a product. RSL Report It is the specific implementation and embodiment of these regulations and standards, through a series of laboratory tests to determine whether the product contains prohibited chemical substances. Importance As consumers worldwide increasingly demand for product quality and safety, especially for products that may contain heavy metals or harmful chemicals harmful to human body, governments and relevant agencies have strengthened the supervision of such products. As one of the important economies in the world, the EU's environmental and safety standards have extensive influence around the world. Therefore, obtaining RSL Report certification is an essential step for products...

  Definition of thermal test : thermal test, also known as thermal cycle test or temperature cycle test, is the most commonly used test in product reliability design to screen parts or semi-finished products test. This test evaluates the reliability and durability of the product by simulating the temperature changes that may be encountered in actual use. ‌ Application scenarios and importance of thermal testing : Thermal testing is widely used in electronic products, plastic parts and other products that are easily affected by environmental temperature. In the new product design and development stage, the thermal test can early find the weaknesses of the product after the temperature change, so as to improve the design quality or the quality of the material used, to ensure that the product can work stably in a variety of temperature environment. Specific methods and equipment of thermal testing : Thermal testing usually involves alternately exposing a certain amount of test product...

  Different requirements for electric shock protection and fire prevention: IEC standard is based on the electrical appliances with 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 prevention requirements are relatively strict, the requirements for material flame resistance are higher, the polymerization materials used in key parts of the product need a higher UL flame retardant grade; Standard structure is different: T he special safety requirements of IEC standard for specific products should be used in combination with the general safety requirements, while UL standard is one product and one standard; UL standard is the combination of the structure and the performance test method is the key to...

Headphones are the electronics we often use, but listening to concerts at a loud volume for long hours hurts your ears. The sound pressure, output voltage and audio stability test of the portable playback device are specified   by the EN50332. The test range includes all portable audio devices with headphones or headset sockets and individual headphone products. EN50332 t est classification: EN50332 i s divided into two parts, EN5032-1   and EN50332-2 .   A nd EN50332-2 is divided into EN5032-2-1 (player output voltage) EN5032-2-2 (headset Broadband characteristic voltage test). The EN5032-1 includes the maximum sound pressure level measurement, for the performance of the player and the headset, the EN5032-2 includes two tests of the maximum output voltage and the broadband characteristic output voltage of the headset. EN50332 t est requirements: 1. The product shall be tested in the silent room (silent room) to avoid interference from environmental noise. The headphones ...

  CB certification is an international certification method for electric razor products to pass the CB system certification of the IEC System for Conformity Assessment Schemes for Electrotechnical Equipment and Components (IECEE), and to obtain the CB test certificate and CB test report. The CB certification system is a global mutual recognition system established and implemented by IECEE. process: Select the certification body: select the certification body with CB certification qualification. Submit application materials: submit product related information and technical documents to the certification body, including product specifications, circuit schematic diagram, appearance and size diagram, operation manual, etc. Sample testing: The certification body tests the submitted sample to verify whether it meets the relevant standards and requirements of CB certification. Review and certification: after passing the test, the certification body will issue the CB certification certific...

Live atmosphere lamp is common auxiliary tools, live atmosphere lamp to export to the eu market will obtain CE certification, (note: the British since the plan in January, 2023 fully implement UKCA certification) in the eu market CE certification is compulsory certification, goods to circulation in the eu circulation sales must add CE mark, this is the mandatory requirements of the eu regulations. Live atmosphere lamp to provide information for CE certification: 1. Atmospbe lamp sample (prepare one of 2 for backup) 2. Specific product specification 3. Product circuit diagram 4. Material list 5, PCB graph 6. Certification application form The certification process is as follows: 1, certification project application: Submit the product certification application after determining the certification body. 2. Preparation for data certification: Provide products and company information according to the certification requirements. 3. Sample test: Make complete testing of the product according ...

  The European Union EN71 series toy safety standard is a series of specific testing technical requirements and specifications formulated by CEN (European Standardization Committee) for the Toy Safety Directive 2009 / 48 / EC (formerly 88 / 378 / EEC). EN 71 series standards involve toy safety and environmental protection related indicators, and cover most categories of toy products, all toy products sold in the European Union need to meet the EN 71 testing standards. Toys EN71 Product range: Toys plastic toys, metal toys, catapults toys, doll toys, model toys, etc Electric toy battery drive toys, double power supply toys, laser toys, etc Children's strollers, children's bicycles, children's tricycles, baby walkers, electric trolley, other toy vehicles, etc Other children's products crib, high chair, folding chair, hanging chair, cradle car and cradle, play chair, swing, etc

FCC (Federal Communications Commission) certification is a compliance certification for radio frequency equipment sold in the United States. For induction lights, FCC certification mainly focuses on the following aspects: RF Radiation Test: To assess whether induction lamps produce RF radiation during use and ensure that their radiation levels are within the limits specified in FCC. RF Conducted Testing: detect whether the electromagnetic noise inside the induction lamp is within the specified range to prevent interference to the wireless communication network. EMC Testing: Evaluate the performance of the induction lamp in the electromagnetic environment to ensure that it does not interfere with other equipment and can withstand electromagnetic interference from other equipment. +8613066967377 uni8618@163.com 0755-86180996 hofferlau@uni-lab.hk