原名S20-1981。提供表格（检查表），通过列出并提供所有主要描述选项的空间，提供术语，并促进报价、采购、接收、会计和订购程序，促进仪器规范在内容和形式上的一致性。ISA S20 Electronic是一个单独可用的软件程序，可自动执行仪表规格表的ISA-S20标准。

Formerly S20-1981. Provides forms (checklist) to promote uniformity in instrument specification, both in content and form, by listing and providing space for all principal descriptive options, supplying terminology, and facilitating quoting, purchasing, receiving, accounting, and ordering procedures.ISA S20-Electronic is a separately available software program that automates the ISA-S20 standard for instrument specification sheets.