Threshold Limit Values (TLVs) for airborne contaminants, laid down by the American Conference of Governmental Industrial Hygienists are generally adopted by the appropriate authorities int his country. These values refer to time-weighted concentrations for normal working periods and are based upon the best avaiblabe information from industrial experience, experimental human and animal studies, preferably from a combination of all three sources. It is believed that there should be no adverse effects on persons repeatedly exposed to contaminants at levels below their TLVs.
Welding fume threshold limit values
Grenzwerte fuer Schweissrauche
Metal Construction and British Welding Journal ; 7 , 9 ; 465-471
1975
5 Seiten, 3 Bilder, 2 Tabellen, 3 Quellen
Article (Journal)
English
Development of Lightweight Fume Extraction Welding Guns
NTIS | 2001
|Engineering Index Backfile | 1951
European Patent Office | 2015
|Emerald Group Publishing | 2000