Flashcards

Asbestos: Types and Dangers

Oliver Balay Inglês 9 flashcards 1.552 visualizações

Flashcards do conjunto (9)

1AsbestosThe term asbestos is derived from a Greek word meaning "inextinguishable". A group of fibrous silicate minerals, the most common of which are:
Chrysotile, Crocidolite and Amosite.
Asbestos can still be found in buildings constructed up to the year 2000.
2AmositeAmosite is also known as brown asbestos.
Amosite was used for anti-condensation and acoustic purposes; on structural steel it was used for fire protection.
In the UK Amosite was also used widely in the manufacture of insulation boards. The import of Amosite was banned as of 1 January 1986 by The Asbestos (Prohibitions) Regulations 1985.
3ChrysotileAlso known as white asbestos/
Chrysotile a useful reinforcing material in asbestos-cement building products, such as corrugated roofing.
4CrocidoliteCrocidolite is known as blue asbestos.
The needle-like fibres are the strongest of all asbestos fibres and have a high resistance to acids.
Crocidolite was used in sprayed insulation.
Crocidolite is known to be the most lethal of all the asbestos types.
5Asbestos PPEThe correct type and standard of PPE is required to be worn.
6MesotheliomaA cancer of the
linings to the lungs and stomach.
7Lung cancerAsbestos lung cancer and Mesothelioma are similar in that they can take decades to develop yet only months to spread to distant organs.
8AsbestosisAsbestosis is the scarring of the lungs
which leads to long-term breathing complications. The disease does not have a cure.
It is caused exclusively by exposure to asbestos, but may not be diagnosed until decades after the exposure occurred.
9Control of Asbestos Regulations 2012The Control of Asbestos Regulations 2012 came into force on 6 April 2012
Updating previous Asbestos Regulations, in practice the changes are fairly limited. They mean that some types of non-licensed work with asbestos now have additional requirements, i.e. notification of work, medical surveillance and record keeping. All other requirements remain unchanged.