ISO/IEC 7810
Standard for ID cards

ISO/IEC 7810 Identification cards — Physical characteristics is an international standard that defines the physical characteristics for identification cards.
The characteristics specified include:
Physical dimensions
Resistance to bending, chemicals, temperature, and humidity
Toxicity
The standard includes test methods for resistance to heat.
Card sizes
The standard defines four card sizes: ID-1, ID-2, ID-3 and ID-000.
All card sizes have a thickness of 760±80 μm, i.e. minimum 0.68 millimetres (0.027 in) and maximum 0.84 millimetres (0.033 in).
The standard defines both metric and imperial measurements, noting that:
Numeric values in the SI and/or Imperial measurement system [...] may have been rounded off and therefore are consistent with, but not exactly equal to, each other. Either system may be used, but the two should not be intermixed or reconverted. The original design was made using the Imperial measurement system.
ID-1
The ID-1 format specifies a size of 85.60 by 53.98 millimetres (3+3⁄8 in × 2+1⁄8 in) and rounded corners with a radius of 2.88–3.48 mm (about 1⁄8 in). This format is also referred to as CR-80 and, for travel documents, TD1.
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This entry incorporates text from “ISO/IEC 7810” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.