薄型柔性卡(TFC)是ISO/IEC 15457的主题，用于自动控制对商品或服务的访问，例如公共交通、高速公路收费系统、停车场、凭证、储值等。 对于这些应用，数据可以由机器使用各种记录技术来写入和/或读取，例如磁条、光学字符识别(OCR)、条形码、非接触式等。 ISO/IEC 15457-1:20 08规定了薄型柔性卡在卡生命周期中两个点的物理特性: 在装入发卡设备时； 在向公众发布的问题上。 它考虑了人和机器两个方面，并规定了最低要求。 识别主卡尺寸，并指定特征和尺寸。 给出了在各种环境条件下存储和使用卡的指南。

Thin flexible cards (TFC), the subject of ISO/IEC 15457, are used to automate the controls for access to goods or services such as mass transit, highway toll systems, car parks, vouchers, stored value, etc. For these applications, data can be written and/or read by machines using various recording techniques such as magnetic stripe, optical character recognition (OCR), bar code, contactless, etc. ISO/IEC 15457-1:2008 specifies the physical characteristics of thin flexible cards at two points in the card life cycle:

1. at the point of loading into the card issuing equipment;
2. at the point of issue to the public.

It takes into consideration both human and machine aspects and states the minimum requirements. The principal card sizes are identified and the characteristics and dimensions are specified. Guidance concerning the storage and use of cards under various environmental conditions is given.