Installation

Follow the directions below for proper installation and

grounding of the ESD smock.

1. Put on the smock and fasten all of the snaps on the front

of the smock, making sure that clothing is not exposed

outside of the smock.

2. Throughout use, it is essential that conductive cuff be in

intimate contact with wrist skin; conductive cuff should

never be allowed to be pulled up and over shirt sleeve.

3. Install a ground cord to the snap stud located above the

left hand hip pocket. Connect the other end of the ground

cord to a verified ground point such as a grounding

block or common point mat ground.

Grounding Integrity Testing

For daily testing or monitoring of the grounding integrity of

Desco ESD protective smocks and ground cords, we

recommend the use of standard wrist strap testers or

singlewire workstation continuous monitors. Panel-to-panel

conductivity is essential so as not to leave portions of the

smock as isolated charged conductors. Panel-to-panel

conductivity is easy to test using our Surface Resistance

Test Kit Item #19780. Place the two five-pound electrodes

on different panels to test. Unless properly grounded, the

smocks can hold a charge and become a possible source

for discharge to ESD susceptible products. For additional

information, refer to ANSI/ESD S20.20, TR20.20, and the

ESD Association Garment Standard, ESD-STM2.1. Desco

has several testers available for this purpose. For

more information ask for specification drawings or operating

instruction manuals by item number.

TB-2055 Page 3 of 4

© 2011 DESCO INDUSTRIES INC.

Employee Owned

DESCO WEST

- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178 • Fax (909) 627-7449

DESCO EAST

- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Fax (781) 575-0172 • Web Site: Desco.com

Figure 5. Testing and monitoring of smock and ground

cord assembly

YES!

YES!

NO!

NO!

Figure 3. Proper installation of smock wearer’s body

Figure 4. Grounding the smock

Figure 6. Testers

The user and the smock will now be properly grounded. The

“hip to cuff” grounding feature allows greater freedom of

movement of user’s arms and hands, and a reliable path to

ground while the ESD smock offers extra protection against

damaging electrostatic fields which may be generated by

the user’s clothing.

NOTE: ANSI/ESD S20.20 REQUIRES THAT THE

GROUND CORD SELECTED FOR GROUNDING OF

PERSONNEL CONTAIN A BUILT-IN CURRENT LIMITING

1 MEGOHM RESISTOR.

Heat Sealed Patches

It is possible to heat seal patches to our smocks. The patch

should be small and the smock should be tested before and

after application.

Maintenance

For proper operation, the ESD protective smock must be

laundered periodically. Woolite works well. Liquid

detergents are better than dry in that there is less caking

and frictional wear. Launder garment in cool or warm water,

tumble dry with low heat or hang dry. Launder the smocks

by hand or with a washing machine. Use a standard

household machine on gentle cycle or use an industrial

machine if “Pony” (typically under 200 pound loads)

machines are used. It is not recommended to launder these

garments in heavy industrial laundry machines as it will lead

to premature wear. Garments should be tumbled dry using

low heat.

DO NOT USE BLEACH OR FABRIC SOFTENER.

19250

19350

19780