- ページ 11

安全装置 Dupont Tychem VaporのPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Dupont Tychem Vapor 20 ページ。 Garments

ページを印刷する

User Manual for DuPont

Manage and Prevent Heat Stress

Chemical protective clothing interferes with the natural

regulation of body temperature. This can lead to a rise in

core body temperature and heat stress. The wearer can

take steps to try to delay the onset of heat stress. This

may include the use of a personal cooling system and/or

implementation of a conservative work/rest schedule.

The maximum length of time that a Tychem

Level A or B suit can be worn depends on such variables

as the breathing air supply, ambient conditions, climate

inside the suit, physical and psychological condition of the

wearer, work rate, and work load. The TLV

from the American Conference of Governmental Industrial

Hygienists (ACGIH) provides corrected heat stress limits

for some garments. Similar information is available on

the federal OSHA web site (www.OSHA.gov). The wet bulb

globe temperature (WBGT) correction factor for chemical

protective garments is at least 10°C or higher for chemical

garments made of impervious film fabrics like Tychem

covering the entire body (hooded coverall or encapsulating

designs).

Be aware of the common symptoms and treatment of

heat stress. If you or your co-workers have symptoms of

heat stress such as nausea, dizziness, high heart rate, or

excessive heat build-up, leave the work area immediately,

remove the suit or ensemble as quickly as possible after

decontamination and seek professional medical care.

Chemical Permeation Data

Before using a Tychem

suit for skin protection from possible

chemical exposure, review the chemical permeation

data provided on DuPont

™

dupont.com). The reported permeation data is based on

performance under controlled laboratory conditions for

new fabrics, not complete garments. This data is intended

for informational use by persons having technical skill

to consider this data along with their specific end-use

conditions and hazards, at their own discretion and risk.

Anyone intending to use this information should first verify

that the garment selected is suitable for the intended use.

In many cases, seams, visors, and closures have shorter

breakthrough times and higher permeation rates than the

base fabric used to assemble the suit.

Tychem

Encapsulated Level A and Encapsulated Level B Suits

™

encapsulated

™

pocket guide

SafeSPEC

™

(www.safespec.

The chemical permeation barrier performance of a

material depends on a number of factors including

chemical concentration, temperature, exposure time, and

amount of exposure. Due to the large number of variables,

it is impossible for all ensemble materials to be tested

against all chemicals, all combinations or mixtures, and all

temperatures at which the chemicals might be encountered.

No single protective material will protect against all

chemicals in all situations. An ideal course of action is to

test the primary garment materials against the specific

chemical hazard, at the temperature and concentrations

to be encountered. If requested, DuPont will provide free

swatches of primary garment materials to end users to

permit them to conduct their own barrier evaluations.

DuPont can also provide a listing of test laboratories which

are familiar with permeation barrier test methods.

Avoid Purposeful Exposure

Good practice is to minimize, as much as possible,

and

continuous exposure to any known hazardous substance.

Static Electricity

It is possible that Tychem

discharge static electricity while being worn, donned, or

doffed. Discharges are not normally dangerous except in

situations where the generation of an electrical spark could

ignite a flammable atmosphere. In the case of explosive

or flammable atmospheres, even if appropriate steps have

been taken to manage static generation and to dissipate

static charges, the risk of severe injury or death remains if

an uncontrolled or accidental ignition occurs.

Tychem

10000 FR (Tychem

been tested and certified to the flash fire escape option

of NFPA 1991, Standard on Vapor-Protective Ensembles

for Hazardous Materials Emergencies. However, do not

knowingly enter an environment in which the concentration

of flammable gas/vapor or combustible dust is within

flammable or explosive limits when wearing any Tychem

garment, including RF600T, TK600T, and TK601T. Retreat

immediately if you encounter such an environment.

garments might build and

Reflector

) model RF600T has