This part of ISO 18185 specifies a freight container seal identification system, with an associated system for verifying the accuracy of use, having: ? a seal status identification system; ? a battery status indicator; ? a unique seal identifier including the identification of the manufacturer; ? a seal (tag) type. This part of ISO 18185 is used in conjunction with the other parts of ISO 18185. It applies to all electronic seals used on freight containers covered by ISO 668, ISO 1496-1 to ISO 1496-5, and ISO 8323. Wherever appropriate and practicable, it also applies to freight containers other than those covered by these International Standards.