What are the replacement conditions for anti-static clothing?
It can be said that anti-static clothing is the first line of defense for workers' life support, so the safety and effectiveness of anti-static clothing is particularly important. ESD technical advice recommends that you purchase an objective test method for antistatic clothing and fabrics, and establish particle capture efficiency, prevent particle shedding, and ESD efficacy as a replacement for work clothes.
Most antistatic garments can be used for longer periods of time in real-time applications and in accordance with IEST-RP-CC003.3 and ASTMF after 100 effective cleanings as recommended by the IEST-RP-CC003.3 operating procedures. -51 standard. Typically there are 17 process cycles in a year. Therefore, if employees wearing anti-static jumpsuits always adhere to the clean room regulations, clean clothes should be able to meet the clean room use for at least 6 years. The specified fabric or garment manufacturer shall be responsible for the repair of the dust-free suit to ensure the effectiveness and durability of the garment repair. Tianjin strength provides dust-free cleaning colleagues also provide related maintenance services.
According to the test, the number of particles falling off in the range of 0.3 to 0.5 um of the entire garment was evaluated. The cleanliness standard of the first-grade 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 Anti-Static Covers. Evaluate particle shedding and the number of filaments above 0.5 um on a square foot of fabric. SEM/EDX or SEM/EDS can identify particles on the filter as soluble particles, insoluble particles or ionic particles. The standard for Class A garments is less than 1000 particles with a particle size ≥ 5 um per square foot of cloth and less than 10 filaments. The human body box or particle control test evaluates a complete clean room clothing system in a simulated clean room environment. EOS/ESDSTD 2.1., 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 resistance of dust-free clothing fabrics Coefficient and surface resistance. The static dissipation range of clean room clothing is 105-11 Ω. Microbial penetration testing assesses 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.