About one week before your exchange date, your new badges/dosimeters will arrive. The date shown on either the front or the back of the dosimeter is the beginning date of your wear period. Use your dosimeters beginning on the wear date or as close to that date as possible.
Return all used and unused dosimeters at the end of each wear period along with the control dosimeter(s) of the same type and wear date.
Mail to: LANDAUER
Attention: Receiving Department
2 Science Road
Glenwood, IL 60425-1586
Mark on the outside of the package "Do Not X-Ray; X-Ray Badges Enclosed”