73822 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – Statshield Smocks Grounding, Testing and Maintenance

TECHNICAL BULLETIN TB-2055
Statshield^® Smocks
Grounding, Testing and Maintenance
Made in the
United States of America
NO WRISTBAND 
NECESSARY
COIL CORD TO GROUND
Figure 1. Desco Statshield^® Premium Lab Coat with
Conductive Cuffs. Also available in Jacket length.
WRISTBAND (NOT INCLUDED)
SNAPS TO CONNECT TO GARMENT
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.
COIL CORD TO GROUND
Figure 2. Desco Statshield^® Premium Jacket with Snaps.
Also available in Lab Coat length.
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.
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.
“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
DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • [phone]
DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • [phone] • Web Site: Desco.com
TB-2055 July 2013 Page 1 of 4
© 2013 DESCO INDUSTRIES INC.
Employee Owned