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73628 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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1 / 4 page Statshield® Smocks Grounding, Testing and Maintenance Description Desco’ Statshield® smocks are designed to be antistatic, low tribocharging, and create a Faraday Cage around the torso and arms of the wearer to protect ESD susceptible items from electrostatic fields generated by clothing on the operator’s clothing. Statshield® Smocks meet the requirement for Groundable Static Control Garment System per ANSI/ESD S20.20-2007’s required limit of < 3.5 X 107 ohm Rtg tested per ANSI/ESD STM2.1. “While a person may be grounded using a wrist strap or other grounding methods, that does not mean that insulative clothing fabrics can dissipate a charge to that person’s skin and then to ground. Personnel clothing usually is electrically separate or isolated from the body.” “Groundable Made in the United States of America TECHNICAL BULLETIN TB-2055 TB-2055 July 2013 Page 1 of 4 © 2013 DESCO INDUSTRIES INC. Employee Owned DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178 DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Web Site: Desco.com COIL CORD TO GROUND NO WRISTBAND NECESSARY COIL CORD TO GROUND WRISTBAND (NOT INCLUDED) SNAPS TO CONNECT TO GARMENT Figure 2. Desco Statshield® Premium Jacket with Snaps. Also available in Lab Coat length. Figure 1. Desco Statshield® Premium Lab Coat with Conductive Cuffs. Also available in Jacket length. Static Control Garment System, Garments that are used to establish the primary ground path for a person shall provide a resistance of less than 35 megohms from the person to the groundable point of the garment.”[ESD TR20.20-2008 section 5.3.13 Garments] Statshield® smocks are constructed of a lightweight dissipative material which made from texturized polyester and a minimum of 9% carbon nylon monofilament. The conductive nylon fibers are woven in a chain-link design throughout the material, providing continuous and consistent charge dissipation. All of the seams in Statshield® smocks are designed to maintain electrical continuity from panel to panel and from sleeve to sleeve in accordance with the ESD Association Garment Standard, ESD-STM2.1. “After verifying that the garment has electrical conductivity through all panels, the garment should be electrically bonded to the grounding system of the wearer so as not to act as a floating conductor.” [ESD TR20.20-2008 section 5.3.13 Garments] The conductive fabric in smock is a conductor. If not grounded, the smock can become an isolated charged conductor. If not grounded via a wrist strap coil cord, ground the ESD garment using ESD footwear to ESD flooring. The dissipative material becomes part of the ground path to remove static charges. Statshield® smocks are available in two lengths -- the lab coat length and the jacket length. Both lengths are available in two styles - with snaps and with conductive elastic cuffs. Smocks are available in eight colors* -- blue, white, teal, burgundy, black, camouflage, pink and grey. Statshield® smocks incorporate a “hip-to-cuff” grounding feature which allows for hands-free grounding with no cord attached to the operator’s wrist. This feature allows connection of a ground cord to a 4mm snap stud on the hip. A seam of carbon-suffused threads provides a secure and direct electrical connection from the snap stud on the hip to conductive elastic cuffs. Statshield® smocks ground the person when used in this manner. Standard touch testing or continuous monitoring can be used to test the “hip-to-cuff” function. *Fabric lots vary slightly in color. |
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