Testing anti-static rubber mat
Anti-static rubber mat will be affected by the test environment during the performance test, resulting in unstable test parameters and large differences before and after. In order to ensure the "professional, focused and meticulous" test, we have summarized eight common misunderstandings on the test of anti-static rubber, as follows:
Misunderstanding 1: Non-constant temperature and humidity conditions.
Anti-static should be a designated electrostatic protection area, and the temperature and humidity are generally controlled at 21+2OC, 45~65%, and a real-time monitoring thermometer and humidity meter can be installed. The current temperature and humidity of the device must be recorded before each test.
Misunderstanding 2: Testers who have not been professionally trained and assessed
Anti-static rubber testers must be trained by professionals and confirmed by assessment before they can take up their posts.
Misunderstanding 3: Failure to ensure that the testers and instruments are well grounded
In the standard rubber test, the testers are generally required to use a wrist strap to ground, and the test instruments must also be directly grounded (such as Terk520). Before each test, check whether the grounding terminal is connected properly.
Myth 4: Non-dedicated stainless steel grounding table and insulation board with unknown parameters
A dedicated test bench and spare insulation board should be set up separately, and the test bench needs to be grounded separately.
Myth 5: The cleanliness of the contact surface between the sample and the instrument is not checked before the test
In order to ensure that the sample is not affected by surface stains during the test and interfere with the test accuracy, the cleanliness of the rubber surface and the cleanliness of the instrument surface should be checked before the test (such as the surface of the two electrodes of the megohmmeter contacting the sample must be clean, otherwise it will also interfere with the test effect).
Myth 6: Failure to check whether the instrument is invalid before the test
Dedicated test instruments also need to be calibrated regularly to ensure that they work within the effective range.
Myth 7: The sample to be tested is not balanced for enough time under the specified conditions
The sample to be tested needs to be balanced for a certain period of time (generally 24 hours) under the test conditions of constant temperature and humidity before testing to eliminate the influence of external factors brought in.
Myth 8: External factors are not avoided during the test
During the test, the sample should avoid any external interference except the tester and the current sample to ensure the accuracy of the results.