RFID system standards.
DIN ISO 14443:
International series of standards for non-contact chip cards. These are used in identification systems and access control, but also for payment applications such as credit cards, public transportation tickets etc. Operates at a frequency of 13.56 MHz.
DIN ISO 15693:
International series of standards for non-contact chip cards, access control and payment applications. Operates at a frequency of 13.56 MHz and is the prevailing standard in automation.
Mifare:
World's most often used contactless chip card technology. Complies with ISO-Standards ISO 7816 and ISO 14443A.