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Test methods for antistatic chairs

Update:08-04-2022
Summary:

The anti-static chair has the characteristics of comfor […]

The anti-static chair has the characteristics of comfortable texture, breathable heat dissipation, impact resistance, corrosion resistance, wear resistance and fission resistance. It is widely used in laboratories, electronic production workshops and dust-free workshops. It is an essential tool for working in static-sensitive areas. , Today I will introduce the test method of anti-static chair.

The anti-static chair is mainly composed of three parts, namely backrest, ESD seat cushion and metal accessories, etc. It not only has very good static discharge performance, but also can effectively discharge static electricity to the ground. In order to ensure that the dust-free studio meets the standard requirements, strict dust generation and ion pollution tests should be carried out on the anti-static chair materials. The test standard of the anti-static chair is carried out with reference to the anti-static testing specification for the application and manufacturing system of electronic products, and the test method is as follows:

1. The test position between the backrest and the seat surface should be correct, and the point-to-point resistance test method should meet the corresponding specification requirements.

2. The system resistance test between the caster and the seat surface should also meet the corresponding requirements. When testing the anti-static chair, a conductive plate with a certain size should be placed under the caster and in good contact; one seat surface is in good contact, and the other is in good contact. An electrode makes contact with the conductive plate.

3. Point-to-point resistance and system resistance test. The electrode material used should be copper or stainless steel, the electrode structure used should meet the size requirements, and the hardness, thickness and volume of the electrode contact end material should meet the requirements.

When testing the point-to-point resistance of an anti-static chair, place the material on an actual use state or an insulating table. The volume resistance and surface resistance of the mesa should meet the requirements, and the distance between the electrodes should also meet the requirements.

The test method of the anti-static chair is introduced here. If the anti-static chair meets the requirements of the standard after the test, it can be used. If it does not meet the relevant requirements after the test, it cannot be used. In the event of an accident, the product that does not meet the requirements shall be re-manufactured.

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