Dust test method for environmental test in the car audio industry
The so-called environmental test is to expose the product to the natural environment or artificial simulation environment to evaluate the performance under the storage, transportation and use conditions that they actually encounter. Through environmental testing, information on design quality and product quality can be provided, which is an important means of quality assurance. The following focuses on the dust test method for car audio:
Dust test (ie dust test chamber): generally can be divided into suspension method and air flow method. The suspension method is used to test the ability of the product to work in an environment where there is no significant air flow and dust to settle freely; the airflow method is used to test a test method with a strong airflow and a working ability of a product in a large amount of dust. For car audio, the suspension method is generally used due to the special situation of the installation location and working environment. The suspension method requires that the test chamber has the ability to intermittently blow dust into it, and the effective space is sufficient. It should be able to ensure a certain dust concentration. The dust used consists of 6 to 8 different sizes and types of fine particles. For example, JIS D 0207, which is a dustproof and dustproof test method for automobile components in Japan, requires a dust concentration of 100 mg/m3, and dust of 6 to 8 kinds of particles specified by JIS Z 8901 is used.
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