What are the proper procedures for using anti-static garments?
1. Anti-static garments should be made entirely of anti-static fabric, without the use of linings. If a lining (such as for pockets or reinforcement patches) is necessary, its exposed surface area must account for less than 20% of the total internal surface area of the garment. For cold-weather gear or other specialized anti-static garments where the lining's exposed surface area exceeds 20% of the total internal area, the design should allow for the outer layer and the lining to be detached from one another.
2. Generally, metal accessories should not be used on anti-static garments. If metal buttons or zippers are required, they must be positioned so that they are not directly exposed while the garment is being worn; this prevents the generation of sparks through electrical discharge, which could otherwise lead to fires or explosions.
3. The appropriate grade of anti-static fabric and garments should be selected based on the specific environment and the electrostatic sensitivity of the items being handled. Anti-static garments must not be put on or taken off within areas where electrostatically sensitive products are being processed. All buttons on the garment should be fastened, and users should avoid any state of partial undress.
4. Before putting anti-static garments into service, a random sample from a batch should be tested for charge accumulation. Periodic re-testing is required after a period of use-especially if the wearer experiences an electric shock when removing the garment.
5. Anti-static garments should be laundered using simple, gentle methods; avoid subjecting them to harsh mechanical or chemical cleaning processes.