2015-10-30 1 English in Life Sciences Elements of life 29.10.2015 Tyvek Tyvek® brand protective material is a family of tough, durable spunbonded olefin sheet products that are stronger than paper and more cost-effective and versatile than fabrics. Tyvek® has a higher strength-to-weight ratio than paper, absorbs little or no moisture, is strong and rip-resistant, and is made of environmentally responsible material. Both bright white and silky smooth, Tyvek® has a distinctive look and feel that enhances graphic images and instantly sets it apart from all other materials. It is a durable, lightweight fabric that provides a breathable barrier that cannot be washed or worn away. Because of its properties, Tyvek® can be used in a variety of applications including building homewrap, protective apparel, and medical packaging.
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English in Life Sciences - do.chem.uni.wroc.pldo.chem.uni.wroc.pl/system/files/2015_04_EiLS_elements of life.pdf · 2015-10-30 1 English in Life Sciences Elementsof life 29.10.2015
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2015-10-30
1
English in Life Sciences
Elements of life
29.10.2015
TyvekTyvek® brand protective material is a family of tough, durable spunbonded
olefin sheet products that are stronger than paper and more cost-effective
and versatile than fabrics. Tyvek® has a higher strength-to-weight ratio than
paper, absorbs little or no moisture, is strong and rip-resistant, and is made
of environmentally responsible material. Both bright white and silky
smooth, Tyvek® has a distinctive look and feel that enhances graphic
images and instantly sets it apart from all other materials.
It is a durable, lightweight fabric that provides a breathable barrier that
cannot be washed or worn away. Because of its properties, Tyvek® can be
used in a variety of applications including building homewrap, protective
apparel, and medical packaging.
2015-10-30
2
TyvekDuPont™ Tyvek® coveralls provide the protection and durability you need
so you can focus on the task at hand.
Engineered by DuPont scientists, DuPont™ Tyvek® coveralls are made of
flash-spun, high-density polyethylene which creates a unique, nonwoven
material. The protection is built into the fabric itself; it can’t be abraded or
worn away. Our Tyvek® coveralls are engineered with our unique comfort-
fit design to give wearers what they want — a greater range of movement,
improved mobility, a more tailored fit, and better overall comfort.
DuPont™ Tyvek® coveralls
• Provide light-weight inherent barrier protection against hazardous dry
particles and aerosols, and nonhazardous light liquid splash
• Are good for industrial workers in a variety of applications including
general maintenance/operations, asbestos and lead abatement, mold
remediation, and environmental cleanups
• Provide excellent abrasion resistance
• Helps protect workers against small size hazardous particles
Flash-spun?
Flashspun fabric is a nonwoven fabric formed from fine fibrillation
of a film by the rapid evaporation of solvent and subsequent
bonding during extrusion.
A pressurised solution of, for example HDPE or polypropylene in a
solvent such as fluoroform is heated, pressurised and pumped
through a hole into a chamber. When the solution is allowed to
expand rapidly through the hole the solvent evaporates to leave a
In toxicology, the median lethal dose,LD50 (abbreviation for “lethaldose, 50%”), LC50 (lethal concentration, 50%) or LCt50 (lethalconcentration & time) of a toxin, radiation, or pathogen
is the dose required to kill half the members of a tested populationafter a specified test duration.
LD50 figures are frequently used as a general indicator of a substance'sacute toxicity.
The mass of substance administered per unit mass of test subject,typically asmilligrams of substance perkilogram of body mass