How long does it take to replace the anti-static suit? This is actually very easy to solve. According to different usage environments and usage habits, how long it takes to replace is different. If you wash it about 100 times according to the normal operation, you should replace the anti-static. Work clothes, this is theoretically based.
Commonly used is the Hanmerk roller test evaluation, the cleanliness standard of the work clothes is that the cleanliness standard of the work clothes is that the number of particles with a particle size greater than or equal to 0.5um per cubic foot of air in one minute should be no more than 1200. ASTM F-51 Preparation, Standard Test Method for Quantification and Statistics of Particle Contaminants on Cleanrooms. Evaluate particle shedding and the number of filaments above 0.5 um on a square foot of fabric. SEM/EDX or SEM/EDS recognizes that the particles on the filter are soluble particles, insoluble particles or ionic particles. The standard for work clothes is less than 1000 particles with a particle size ≥ 5 um per square foot of cloth and less than 10 filaments. The body box or particle control test evaluates a complete clean room clothing system in a simulated clean room environment. ESD Association's standard test method for the protection of ESD sensitive items - work clothes, or ASTM D-257, standard test method for DC impedance or conductance of insulating materials, to evaluate the surface resistivity and surface resistance of dust-free clothing fabrics. The static dissipative range of dustroom garments is 105-11 Ω. The microbial penetration test evaluates the ability to produce microbial particles. Moreover, there are other well-established support tests to determine the identity of particles generated from tests such as SEM/EDX or SEM/EDS.
Whether the anti-static overalls should be changed, if the anti-static clothing you need is in the general environment, you can basically confirm that you can replace it after washing 100 times correctly; if you have higher requirements for anti-static clothing, generally There are inspection equipment, static electricity is required in the scope of control, etc., general anti-static overalls quality inspection will have a hard requirement, then step by step batch sorting test, not up to standard, so in defense It is easy to solve the problem of how long it takes for the electrostatic service to be replaced.
