Stručni rad
Assessment of lead exposure in PVC manufactures and suggestions for control measures
V. Smolčić
; Zavod za zaštitu zdravlja, Split
Sažetak
Air sampling procedure and the method for determination of lead in the samples collected are described. A dust sample containing lead was ashed at 500° C and lead was precipitated as lead chromate. After dissolving the precipitate in HCl lead chromate was determined by diphenylcarbazone. In the paper results of lead determination in the air in three Dalmatian PVC manufactures are presented. At almost every examined operation the concentration of lead in the air was found to exceed maximum permissible concentrations. Some suggestions for preventing lead hazard are given and it is pointed out that the most useful way of eliminating dust is to mix lead salts with a liquid plasticizer before application.
Ključne riječi
Hrčak ID:
178615
URI
Datum izdavanja:
22.9.1966.
Posjeta: 1.262 *