Center Certification & Testing International
Project Introduction
The three comprehensive test is a comprehensive test in which three environmental stresses of temperature + humidity + vibration are applied at the same time. The effect of the integrated environment can reflect the performance of the product in field use more realistically and practically, and it can expose the defects of the product more.
The application of a separate environmental stress on the product can excite the failure of the product, then the application of three different environmental stresses on the product can easily achieve 3-5 times the acceleration effect. At the same time, by synthesizing different environmental stresses, failures that cannot occur when individual stresses are applied can also be stimulated.
In the comprehensive test of simultaneous application of three stresses of temperature, humidity, and vibration, from the mechanism of failure, the temperature cycling product internally expands and contracts due to the difference in material expansion coefficient, and loosens at the joint. Humidity, moisture will invade through the gap, so that the friction coefficient of the joint and the connection is reduced. When vibration stress is applied, the resonance phenomenon of the product will occur with respect to a specific frequency. Through this repeated process of movement, moisture absorption, freezing, and resonance, new failure modes (caused by the greatly accelerated single-factor failure mode and the combined effect of the three factors combined) are made possible.
Application range
The three comprehensive tests of temperature, humidity and vibration are widely used in the complete machines and parts of aviation, aerospace, military, electrical, electronic and other products. 3. Comprehensive testing is an important test method that is indispensable to the whole process of product and material development, prototype testing, and product qualification testing.
Method Standard
Three comprehensive test standard references: GB/T2423.35, GB/T2423.36, IEC/EN60068-2-50; IEC/EN60068-2-51.
As a household appliance, when humidifiers are sold on e-commerce platforms such as JD.com, Tmall and Taobao, they must provide quality inspection reports that meet national standards to ensure quality and safety. According to the Chinese national standard GB4706 series, humidifiers must pass safety tests. The quality inspection report must prove that the product meets safety requirements to avoid causing harm to consumers during use. The quality inspection report provides consumers with a basis for purchase. After being tested by an independent third-party institution, it enhances consumers\' trust in the product. In terms of market access, some shopping malls, supermarkets or government procurement projects require quality inspection reports as proof of product qualification.
SRRC certification is one of the necessary conditions for products to enter the Chinese market for sale. It ensures that the wireless transmission characteristics of the wireless camera comply with national standards, avoiding communication problems caused by radio interference and ensuring the legality and compliance of the product.
FCC certification is a mandatory requirement for wireless device certification in the US market. Through FCC ID certification, wireless microphones can prove their compliance with US radio transmission standards, avoiding market bans or fines for violations. This is particularly important for products that hope to be sold in the US market.
The three comprehensive test is a comprehensive test in which three environmental stresses of temperature + humidity + vibration are applied at the same time. The effect of the integrated environment can reflect the performance of the product in field use more realistically and practically, and it can expose the defects of the product more.
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