[masoomi]

آزﺑﺴﺖ ﭼﯿﺴﺖ؟
آزﺑﺴﺖ ﻧﺎم ﮔﺮوﻫﯽ از ﺗﺮﮐﯿﺒﺎت اﺳﺖ ﮐﻪ ﺑﯿﺸﺘﺮ در ﻃﺒﯿﻌﺖ ﺑﻪ ﺻﻮرت اﻟﯿﺎف ﻣﻌﺪﻧﯽ و ﺳﻨﮓ ﯾﺎﻓﺖ ﻣﯽ ﺷﻮد. ﻧﺎم دﯾﮕﺮ آن ﭘﻨﺒﻪ ﮐﻮﻫﯽ ﯾﺎ ﻧﺴﻮز اﺳﺖ. 
این ماده از دﯾﺮﺑﺎز ﺗﺎﮐﻨﻮن ﻣﻮرد اﺳﺘﻔﺎده ﺑﻮده اﺳﺖ.
تجارت این ماده به خاطر دارا بودن خواص ویژگی و ارزانی آن بسیار سودآور است
اﻧﻮاع آزﺑﺴﺖ ﮐﺪاﻣﻨﺪ؟ 
کرﯾﺰوﺗﺎﯾﻞ Chrysotile asbestos: آزﺑﺴﺖ ﺳﻔﯿﺪ ﮐﻪ 95 درﺻﺪ از ﻣﺼﺮف ﺟﻬﺎﻧﯽ اﯾﻦ ﻣﺎده را تشکیل می هد.
آموزیت amosite asbestos: آزبست قهوه ای
کروسیدولیت crocidolite asbestos: آزبست آبی که بسیار خطرناک می باشد
خطرات آزبست
مواجهه با آزبست
چه مشاغلی در خطرند؟
راههای پیشگیری
وسایل حفاظت فردی

نوع فایل: دانلود PDF 
تعداد صفحات: 8

  ازبست قاتل خاموش.pdf (اندازه 680.45 KB / تعداد دانلود: 189)

Asbestos refers to six unique minerals — chrysotile, amosite, crocidolite, anthophyllite, tremolite and actinolite — belonging to the serpentine and amphibole families

Chrysotile (white asbestos) is the most commonly used form of asbestos. It can be found today in the roofs, ceilings, walls and floors of homes and businesses. Manufacturers also used chrysotile asbestos in automobile brake linings, gaskets and boiler seals, and insulation for pipes, ducts and appliances

Amosite (brown asbestos) was used most frequently in cement sheets and pipe insulation. It can also be found in insulating board, ceiling tiles and thermal insulation products

Crocidolite (blue asbestos) was commonly used to insulate steam engines. It was also used in some spray-on coatings, pipe insulation, plastics and cement products

Anthophyllite was used in limited quantities for insulation products and construction materials. It also occurs as a contaminant in chrysotile asbestos, vermiculite and talc. It may have a grey, dull green or white color

Tremolite and actinolite are not used commercially, but they can be found as contaminants in chrysotile asbestos, vermiculite and talc. These two chemically similar minerals can be brown, white, green, gray or transparen

The AHERA granted the U.S. Environmental Protection Agency (EPA) permission to regulate these six types of asbestos 1986, and more than 50 countries have banned them completely
However, the U.S. Bureau of Mines and the National Institute for Occupational Safety and Health (NIOSH) have since recognized a number of other asbestos-like minerals that are not yet restricted or regulated. For example, winchite, richterite, erionite and taconite are all minerals containing asbestiform fibers with the potential to cause serious health problems