Card standards Guide, Meaning , Facts, Information and Description

Standards for financial and identity cards are set out by ISO.

All credit cards and debit cards, and most ID cards, are the same shape and size ID-1 as specified by the ISO 7810 standard:

• ID-1 = 85.60 × 53.98 mm (= 3.370 × 2.125 in)

• ID-2 = 105 × 74 mm (= A7)
• ID-3 = 125 × 88 mm (= B7)

Smartcards follow specifications set out in ISO 7816, and contactless smart cards follow the ISO 14443 specification (see also RFID).

The ratio of the ID-1 dimensions is approximately the golden section (or golden ratio) in order be as aesthetically pleasing as possible.

See also: Magnetic stripe card

External links

• http://www.cyberd.co.uk/support/technotes/isocards.htm

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