73509 - Desco - Datasheet.Directory

TB-3042 November 2018 Page 1 of 2

Heavy Duty Cotton Poly ESD Smocks

Installation and Maintenance

Figure 1. Desco Heavy Duty Cotton Poly ESD Smocks

Description

Desco Heavy Duty Cotton Poly ESD Smocks is a

Static Control Garment with Rtg < 1 x1011 ohms

meeting the required limits of ANSI/ESD S20.20 when

tested per ANSI/ESD STM2.1 or ESD TR53.

“Garments are intended to attenuate electrostatic fields

that may be present on personnel clothing. … 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.” (ESD

TR20.20-2008 section 5.3.13.1)

Outfitting a work force in Heavy Duty Cotton Poly

ESD Smocks is the single most powerful step to

demonstrate a company’s commitment to their ESD

control program.

Garments can also be very important in field work, as

the area may be an uncontrolled environment which

can be very dry.

Desco Heavy Duty Cotton Poly ESD Smocks are

designed to be antistatic, low tribocharging and offer

protection to ESD sensitive items from electrostatic

fields generated by clothing on the user’s body.

The Heavy Duty Cotton Poly ESD Smocks create a

Faraday Cage around the torso of the wearer that

shield ESD susceptible items from static charges

generated on the wearers’ clothing.

The Heavy Duty Cotton Poly ESD Smocks are

constructed of a heavy weight cotton/poly blend with a

minimum of 1% conductive fiber providing continuous

and consistent charge dissipation. All of the seams

Employee Owned

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, ANSI/ESD STM2.1. The smocks

include a snap socket on each cuff.

Heavy Duty Cotton Poly ESD Smocks are available in

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com

TECHNICAL BULLETIN TB-3042

Item

73505

73506

73507

73508

73509

Size

Small

Medium

Large

X Large

2X Large

Chest

34" - 36"

38" - 40"

42" - 44"

46" - 48"

50" - 52"

Sleeve

34"

34" - 3/8"

35"

35" - 1/2"

Instructions for use

Follow these directions for proper installation and

grounding of the Heavy Duty Cotton Poly ESD Smocks:

Put on the garment, fastening all the press studs on

the front of the smock; ensure no clothing is exposed

outside of the smock. Note: EN 61340-5-1 paragraph

5.2.5 Garments “Coats, jackets, smocks and overalls

shall completely cover all clothing in the area of the

arms and torso.

“Garments that become worn or damaged should be

repaired or replaced by a qualified source to ensure

the electrical integrity of the seams. Once the repair

is made, the periodic test described above, should be

conducted to validate the repair.” (ESD TR20.20-2008

section 5.3.13.4.1 Repairs)

“For personnel safety, static control garments

should not be worn in situations where there is

exposure to high voltage. Regular laundering of static

control garments according to the manufacturer’s

recommendation is suggested to make sure conductive

fibers do not become contaminated and rendered

insulative. After laundering, thorough rinsing of the

garment will help eliminate the possible buildup of

chemicals on the conductive fibers, which can cause

them to become insulative. Drying garments at high

temperatures may degrade conductive fibers in fabrics

used to manufacture garments.” (ESD TR20.20-2008

section 5.3.13.6 Other Considerations)

Made in the

United States of America

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 • Website: Desco.com

Specifications

Fabric Weight 5 ounces/sq yard

Fabric Content Texturized polyester (65%),

cotton (34%) and a minimum

of 1% conductive fibers.

Surface Resistance

of Fabric Rpp < 1 x 109 ohms per

ANSI/ESD STM2.1

Static Decay Rate

5000 volts to 500 volts in less

than 0.1 seconds, per

FTMS-101C

Compliance Verification Testing

Panel to panel conductivity is essential and easy to

test using our Digital Surface Resistance Meter Item

#19290, by placing 5 pound electrodes on different

panels. For additional information, refer to ANSI/ESD

S20.20, ESD TR20.20, the ESD Association Garment

Standard, ANSI/ESD STM2.1, and Compliance

Verification ESD TR53.

Maintenance

For proper operation, ESD garments 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.

In terms of laundering the smocks by hand or with

a washing machine, most prefer using a washing

machine. This works well if using a standard house

machine on gentle cycle. Industrial machines are fine

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 BLEACH.

The conductive fibers are sensitive to heat and should

not be exposed to laundering heat in excess of 120°F.

Use only non-ionic softeners and detergents when

laundering. Under normal wearing and recommended

washing conditions, Desco Heavy Duty Cotton Poly

ESD Smocks will maintain their usefulness and

effectiveness for a minimum of 50 washings.

Limited Warranty, Warranty Exclusions, Limit of

Liability and RMA Request Instructions

See the Desco Warranty -

Desco.com/Limited-Warranty.aspx