ISO 18812:2003规定了临床实验室内分析仪器（AIs）和实验室信息系统（LISs）之间电子信息交换的一般信息。适用于临床化学/生物化学、血液学、毒理学、微生物学、病毒学和免疫学等专业。不适用于输血和血库专业 ISO 18812:2003涵盖了通信方使用的消息规范及其通信语法。它不包括用于消息交换的传输机制。 ISO 18812: 2003仅适用于基于字符的消息信息。它不适用于图形或图像信息的通信。

ISO 18812:2003 specifies general messages for electronic information exchange between analytical instruments (AIs) and laboratory information systems (LISs) within a clinical laboratory. It is applicable to the specialities of clinical chemistry/biochemistry, haematology, toxicology, microbiology, virology and immunology. It is not applicable to the blood transfusion and blood bank speciality ISO 18812:2003 covers the specification of messages used by communicating parties and the syntax in which they are communicated. It does not cover the transport mechanisms used for the message interchange. ISO 18812:2003 is applicable only to character-based message information. It is not applicable to the communication of graphical or image information.