This standard specifies the air interface between the container electronic seal device and the reader/interrogator. This standard is related to other standards in the KS T ISO 18185 series. Because the standards must meet the same standard conditions when established, This standard describes the physical layer for RFID logistics applications for cargo containers consistent with the provisions specified in KS T ISO 18185 (all parts) and KS A ISO 17363. However, each standard specifies requirements for each standard other than the physical layer. RFID cargo container identification (described in KS T ISO 10374 and KS A ISO 17363) and electronic sealing devices (described in KS T ISO 18185 (all parts)) are expected to use the same infrastructure and are described in this standard. It should be noted that there are requirements for various frequency bands for passive equipment, which have opposite characteristics to active equipment. This standard is KS T ISO 668, Parts 1 to 5 of KS T ISO 1496, KS T ISO It is applicable to all electronic seals used in cargo containers specified in 830, and also to cargo containers not specified in these standards, if appropriate and implementable.