Desco TB-2055 Service Manual

TECHNICAL BULLETIN TB-2055

ESD Statshield® Protective Smocks
Grounding, Testing and Maintenance

NO WRISTBAND
NECESSARY

COIL CORD TO GROUND

Figure 1. Desco Statshield® Premium Lab Coat with
Conductive Cuffs. Also available in Jacket length.

Description

Statshield Smocks are a Groundable Static Control
Garment System meeting the ANSI/ESD S20.20-2007
required limit of < 3.5 X 10E7 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 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]

Outfitting a work force in ESD smocks is an important step
to demonstrate a company’s commitment to their ESD
control program. The Desco Statshield® ESD protective
smock is designed to be antistatic, low tribocharging, and
offers protection from electrostatic fields generated by
clothing on the user’s body. Using high quality material
with a minimum 9% carbon nylon monofilament, the smock
creates a Faraday Cage around the torso of the wearer.
Static charges generated by the wearer and wearer’s
clothing will be shielded from ESD susceptible products.
The dissipative material becomes part of the ground path
to remove static charges. The smock is 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 six colors

-- blue, white, teal, burgundy, black, and camouflage.

Figure 2. Desco Statshield® Premium Jacket with Snaps.
Also available in Jacket length.

The Desco Statshield® premium smock incorporates our
“hip-to-cuff” grounding feature which allows for hands-free
grounding with no tugging at 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, providing a
highly reliable connection via the user’s skin. The smock will
quickly and effectively ground the person when used in this
manner.

The smock is constructed of a lightweight dissipative
material which incorporates 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 the garment 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.

Made in America

WRISTBAND (NOT INCLUDED)

SNAPS TO CONNECT TO GARMENT

COIL CORD TO GROUND

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • [phone] • Fax [phone] • Web Site: Desco.com

TB-2055 July 2010 Page 1 of 4

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • [phone] • Fax [phone]

© 2010 DESCO INDUSTRIES INC.

Employee Owned

ESD protective smocks are available in the following styles and sizes:

LAB COATS WITH SNAPS LAB COATS WITH CUFFS

Blue White Teal Chest Sleeve Blue White Teal Chest Sleeve
X Small 73600 73620 73640 30"-32" 33 3/8" X Small 73610 73630 73650 30"-32" 33 3/4"
Small 73601 73621 73641 34"-36" 34" Small 73611 73631 73651 34"-36" 34"
Medium 73602 73622 73642 38"-40" 34 3/8" Medium 73612 73632 73652 38"-40" 34 3/8"
Large 73603 73623 73643 42"-44" 35" Large 73613 73633 73653 42"-44" 35"
X Large 73604 73624 73644 46"-48" 35 1/2" X Large 73614 73634 73654 46"-48" 35 1/2"
2X Large 73605 73625 73645 50"-52" 35 1/2" 2X Large 73615 73635 73655 50"-52" 35 1/2"
3X Large 73606 73626 73646 54"-56" 37 1/2" 3X Large 73616 73636 73656 54"-56" 37 1/2"
4X Large 73607 73627 73647 58"-60" 36 1/2" 4X Large 73617 73637 73657 58"-60" 36 1/2"
5X Large 73608 73628 73648 62"-64" 36" 5X Large 73618 73638 73658 62"-64" 36"
6X Large 73609 73629 73649 66"-68" 36" 6X Large 73619 73639 73659 66"-68" 36"

JACKETS WITH SNAPS

Blue White Teal Chest Sleeve
X Small 73699 73820 73840 30"-32" 33 3/8"
Small 73700 73821 73841 34"-36" 34"
Medium 73710 73822 73842 38"-40" 34 3/8"
Large 73720 73823 73843 42"-44" 35"
X Large 73730 73824 73844 46"-48" 35 1/2"
2X Large 73740 73825 73845 50"-52" 35 1/2"
3X Large 73741 73826 73846 54"-56" 37 1/2"
4X Large 73742 73827 73847 58"-60" 36 1/2"
5X Large 73743 73828 73848 62"-64" 36"
6X Large 73744 73829 73849 66"-68" 36"

JACKETS WITH CUFFS

Blue White Teal Burgundy Black Camo Chest Sleeve
X Small 73749 73830 73850 73900 73860 73870 30"-32" 33 3/4"
Small 73750 73831 73851 73901 73861 73871 34"-36" 34"
Medium 73755 73832 73852 73902 73862 73872 38"-40" 34 3/8"
Large 73760 73833 73853 73903 73863 73873 42"-44" 35"
X Large 73765 73834 73854 73904 73864 73874 46"-48" 35 1/2"
2X Large 73770 73835 73855 73905 73865 73875 50"-52" 35 1/2"
3X Large 73771 73836 73856 73906 73866 73876 54"-56" 37 1/2"
4X Large 73772 73837 73857 73907 73867 73877 58"-60" 36 1/2"
5X Large 73773 73838 73858 73908 73868 73878 62"-64" 36"
6X Large 73774 73839 73859 73909 73869 73879 66"-68" 36"

Note: Black & Camo Jackets with Cuffs
contain a Badge Holder Tab and Two
Sleeve Pen Pockets.

TB-2055 Page 2 of 4

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • [phone] • Fax [phone] • Web Site: Desco.com

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • [phone] • Fax [phone]

© 2010 DESCO INDUSTRIES INC.

Employee Owned