ASBESTOS – A NATURAL FIBRE
Asbestos is a material with numerous qualities which was used on a massive scale before being shown to be highly toxic. Prohibited for use across Europe since 2005, it can still be found in many buildings and machines. Helping to keep workers in such environments safe, protective coveralls made of DuPont™ Tyvek® can provide durable, comfortable and robust protection against asbestos
Understanding the dangers of asbestos
Asbestos is the common name for several naturally occurring fibrous silicate minerals. Asbestos
Since asbestos is a very friable material, microscopic
The Nordic countries banned asbestos between 1970 and 1980. The UK, Germany
Building maintenance workers are at a high risk of coming into contact with the
Minimising the risk when working with asbestos
The European Council Directive 83/477/EEC on the protection of workers from the risks related to exposure to asbestos at work and its
The member states have transposed the provisions of this directive into their own national
Before any work is done, a comprehensive risk assessment has to be carried out and preventive measures have to be established. Employers have to provide the necessary
Choosing appropriate protective clothing
In order to avoid
- High particle barrier (material, seams)
- Smooth surface to prevent particles from adhering to the garment
- Tight fit at arm and leg openings (elasticated cuffs and ankles)
- Compatible with additional PPE (masks, goggles, gloves)
- Comfortable to wear, high freedom of movement
However, existing national regulations may go even further: For example, the new French decree n° 2012-639, which has come into force on 15 March 2013, dictates the use of a single-use garment that meets, at a minimum, the Type 5 level and has stitched and over-taped or welded seams. What is more, some work related
DuPont™ Tyvek® – Durable and robust protection against fine particles and
When comparing their barrier performance with other Type 5 suits made of Microporous Film (MPF) and SMS (Spunbond/Meltblown/Spunbond), the models made of Tyvek® show a significantly lower Average Total Inward Leakage (
EN 1073-2** measures the inward leakage of particles into the whole suit. The result is then expressed as the Nominal Protection Factor (NPF) of a garment. Tyvek® 600 Plus and Tyvek® 500 Xpert meet the requirements of Class 2 (NPF > 50), whereas most other Type 5 protective suits are only Class 1 (see table).
Thanks to the unique non-woven structure of Tyvek®, which forms a durable barrier against airborne particles and many water-based inorganic chemicals, barrier performance will remain intact even if the outer layers become abraded in places. With MPF, the protective outer layer is easily damaged by abrasion, whereas the more open structure of SMS allows more particles to penetrate the garment. (see table)
Beyond its high abrasion and tear resistance, Tyvek® is also lightweight and soft, as well as permeable to both air and water
Tyvek® Protective Apparel
Workers who deal with hazardous substances need confidence in their protective apparel. DuPont™ Tyvek® fabric used in Tyvek® protective apparel is engineered to typically resist particles down to 1 micron in size, including particles such as lead, asbestos, and mould, and helps provide a barrier against many water-based liquid chemicals in low concentration and biological hazards.
INFORMATION & IDEAS
- Tyvek® 500 Xpert Ecopack
DuPont introduces DuPont™ Tyvek® 800 J limited-use coverall
A+A 2013 marks the market launch of the new Tyvek® 800 J coverall by DuPont, the specialists in innovative body protection.
- Tyvek® 500 Xpert Ecopack
- DuPont turns up the heat at A+A 2015
New packaging concept for DuPont™ Tyvek® 500 Xpert can help reduce greenhouse gas emissions
DuPont™ Tyvek® 500 Xpert Eco-Pack can have a significantly reduced impact on the environment when compared to its standard packaging format.
At A+A, DuPont will present new Type 3 chemical suits from its DuPont™ Tyvek® and DuPont™ Tychem® portfolios as well as innovative heat & flame and arc protective solutions made with DuPont™ Nomex®
Planning for large-scale clean-ups
A clean-up operation can take many forms and it is this need for readiness against a multitude of possible events that presents one of the biggest challenges to the emergency planner.
Environmental Emergency and Other Large Scale Clean-ups
Environmental disasters and emergencies can be either man-made or the result of natural phenomena but in either case they almost invariably necessitate a rapid and effective response if the human and environmental impacts are to be mitigated and rectified.