An examination of radiofrequency radiation in the plastic and furniture industries

Radiofrequency (RF) dielectric sealers and heaters are used to weld, glue or heat plastic or wood materials. During the process the operators can be exposed to high levels of RF-radiation. In the report measurements of the electric and magnetic field strengths in the operator position in 20 facilities are presented. The results are discussed in relation to a radiation protection standard which is under work in Norway. A significant number of devices exposed their operators to fields having an equivalent power density greater than 250 W/M2 averaged over one second and 10 W/m2 averaged over one hour. Some means for reducing exposure to the operators are presented. (Auth./RF)