Some of the solid targets require special attention. In some cases mishandling of the targets is relatively innocent, like in the case of the natural Calcium target. This material, when exposed to air, will oxidize, resulting in a large oxygen content in the target. Store natural Calcium always in an argon-filled or vacuum closed case, or in an oil solution. Calcium can be handled in air for a limited amount of time (a few hours) if handled with a layer of oil.
Other special targets may pose a safety concern. At this moment the only twos special target materials we own are ceramic Beryllium-Oxide (BeO) and Beryllium (Be). In solid form, BeO is completely safe under normal conditions of use. The product can be safely handled with bare hands. However, in powder form all Beryllia is toxic when airborne. Overexposure to airborne Beryllium particulate may cause a serious lung disease called Chronic Berylliosis. Beryllium has also been listed as a potential cancer hazard. Furthermore exposure to Beryllium may aggravate medical conditions related to airway systems (such as asthma, chronic bronchitis, etc.). Since beryllia are mainly dangerous in powdered form, do not machine, break, or scratch these products. Machining of the Beryllia can only be performed after consulting the EH&S staff. It is good practice to wash your hands after handling the ceramic BeO. If handling the pure Beryllium target wear gloves and an air filter mask.