Abstract
Practice in the United Kingdom concerning the use of respirators for protection against asbestos dust restricts the application of specific types of respirators. Simple dust respirators are limited to use in concentrations not exceeding 40 fibers per cubic centimeter of air for chrysotile and amosite asbestos and 4 fibers per cubic centimeter of air for crocidolite asbestos. Positive-pressure dust respirators are restricted to use in concentrations not greater than 200 fibers per cubic centimeter of air for chrysotile and amosite asbestos and 20 fibers per cubic centimeter of air for crocidolite asbestos. Ultra-high-efficiency dust respirators may be used in concentrations up to 800 fibers per cubic centimeter of air for chrysotile and amosite asbestos and 80 fibers per cubic centimeter of air for crocidolite asbestos. If the concentration of chrysotile or amosite asbestos is greater than 800 fibers per cubic centimeter of air or if the concentration of crocidolite asbestos exceeds 80 fibers per cubic centimeter of air, then a positive-pressure airline despirator must be employed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
