本国际标准为技术规范的内容和起草提供指导，以便 确保产品、过程或服务的所有技术要求都包括在内，并且可以根据需要进行验证 符合规定的性能要求，如功能规范中可能规定的（参见 ISO 13879）。 对于制造的已知标准产品、工艺或服务，可能不需要技术规范/ 按照公认的标准供应。

This International Standard provides guidance for the content and drafting of a technical specification in order to ensure that all technical requirements of a product, process or service are included and can be verified as complying with specified performance requirements, such as may be specified in a functional specification (see ISO 13879). A technical specification may not be necessary for a known standard product, process or service manufactured/ supplied to a recognized standard.