Búsqueda

Measurements of the efficiency of respirator filters and filtering facepieces against radon daugther aerosols

Fichero PDF / PDF file
Registro MARC
Tag12Valor
LDR  00000nab a2200000 i 4500
001  MAP20071018023
003  MAP
005  20080418115258.0
007  hzruuu---uuuu
008  940316e19921201gbr|||| | |00010|eng d
035  ‎$a‎6800012645
040  ‎$a‎MAP‎$b‎spa
084  ‎$a‎871
24510‎$a‎Measurements of the efficiency of respirator filters and filtering facepieces against radon daugther aerosols‎$c‎D. Wake... [et al.]
520  ‎$a‎The filtration efficiencies of respirator filters and filtering facepieces have been tested against radon daughters in a fluorspar mine. The test method involved the use of sampling filters exposed to natural radon daughters in air filtered by the test respirators. Respirators with a filtration efficiency high enough for them to be considered suitable for use against toxic dusts generally reduced radon daughter levels by 90% or more, though nuisance dust masks were ineffective. The measured penetration of radon daughters through the former types of filter correlated reasonably well with the penetration of 0.1 microm netralized monodisperse aerosols, and with that of the BS 4400 sodium chloride aerosol, measured in the laboratory
65011‎$0‎MAPA20080629724‎$a‎Seguridad e higiene en el trabajo
65011‎$0‎MAPA20080628048‎$a‎Equipos de protección individual
65011‎$0‎MAPA20080601393‎$a‎Equipos respiratorios
65011‎$0‎MAPA20080548094‎$a‎Máscaras
65011‎$0‎MAPA20080543969‎$a‎Filtros
65011‎$0‎MAPA20080585679‎$a‎Higiene industrial
65011‎$0‎MAPA20080605278‎$a‎Contaminantes químicos
65011‎$0‎MAPA20080539658‎$a‎Radón
65011‎$0‎MAPA20080549534‎$a‎Aerosoles
65011‎$0‎MAPA20080539948‎$a‎Tests
7001 ‎$0‎MAPA20080002770‎$a‎Wake, D.
7404 ‎$a‎The Annals of occupational hygiene
7730 ‎$t‎The Annals of occupational hygiene‎$d‎Oxford [etc.]‎$g‎nº 6, December 1992 ; p. 629-636