Shenzhen United Testing Technology Co., Ltd

  The Amazon CPC certificate is a certification document indicating that children's products sold in the US market must comply with the requirements of the US Consumer Goods Safety Improvement Act (CPSIA) and should be provided by the manufacturer or importer. The CPC certificate proves that the product has passed the necessary tests and complies with all applicable child product safety rules. The CPC certificate test items usually include: Physical and mechanical testing Flammability test chemical test Labbel and warning language tests Electrical safety test Radiation test The CPC certificate must contain details of the product, test results, applicable regulations and standards, and contact information for the manufacturer or importer. If the product does not have a CPC certificate or the certificate does not meet the requirements, Amazon may prohibit the product from being sold on its platform. www.uni-lab.hk/ hofferlau@uni-lab.hk

  ASTM is a mandatory certification of toy testing in the United States. Whenever the toy products are exported to the United States, they need to do ASTM testing. ASTM F963 Is a toy testing standard developed by the National Department of Standards of the United States. The latest version is ASTM F963-17 and has become a mandatory standard on September 01,2017. American Toy Safety Test ASTM F963 Standard details: 1. Supplement some references to food and cosmetics, mainly standard methods for microbiological testing, CFMethods M-1, M-2, M-3 and M-6; USP Volume 35 Methods 61, Methods 62 and Chapter 1231; and FDA's Microbiological Analysis Manual. 2. Supplement the key instructions on the inadvertent omission of ejection toys in 2016 edition, indicating that KED (kinetic energy density) is only suitable for ejection and arrow toys with kinetic energy above 0.08J. 3. Revision of some relevant test details such as low-power circuit in electric toy testing. 4. Add and make it clear tha...

Optical performance is a big index, it is composed of solar energy transmittance ,   solar reflectance, solar absorption rate, visible light transmission rate, visible light reflectance, total solar barrier rate, ultraviolet barrier rate, shielding coefficient, U-value and other small indicators. Light on paper, plastic, glass, metal and other materials show a normal reflection, but the amount of reflection is different. primary coverage: 1. refractive index 2 .   Dispersion and dispersion coefficient 3. Birefringence and very-optical refractive index 4 .   reflection and reflection coefficient 5. Full reflection 6. Absorption coefficient 7. Scattering General test: 1. Self-focus of light: A parallel intense beam enters the medium (similar to that through a convex lens). 2. Self-induction and transparency of light: After a short pulse of strong light enters the medium, the medium hardly absorbs its energy (almost transparent). 3. Optical bistability: After the strong ligh...

Composite salt spray test is also called cyclic corrosion test. Cyclic corrosion test (cct) is mainly used in the automotive industry, on the basis of constant salt spray test introduced the high temperature, humidity, low temperature, drying parameters, as far as possible to consider many factors in the natural environment, aims to achieve higher correlation with the natural environment test results. The purpose of the composite salt spray test is to confirm the ability of the objects to be tested to tolerate the salt spray environment, and to use the mutual circulation of salt spray and moisture to simulate the actual use environment. It is suitable to evaluate the electrochemical corrosion effect of metallic materials and salt particles. Composite salt spray test usually consists of three parts: salt spray test stage, moisture test stage and drying test stage. Salt spray test stage: Generally speaking, in addition to naCl, the electrolyte containing other chemicals can also be used ...

  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.