I, too, look forward to doing some testing about this issue. In the meantime, the link below will take you to a site that sells small high impact plastic watertight capsules that might work for iodine. They (and some other sites) also feature metal containers that are lined with plastic and ones that contain a small, sealed glass vial inside the metal container. <br><br>All possibilities.<br><br>http://www.911medalert.com/catalog.asp?action=showcat&id=54&page=4