ISO 9261:2004给出了农业灌溉发射器和排放管及其配件（如适用）的机械和功能要求，并提供了符合此类要求的测试方法。它还规定了制造商提供的数据，以允许在现场进行正确的信息、安装和操作。本标准适用于发射器、排放和滴落（滴）管、软管，包括可折叠软管（“胶带”）和发射装置构成整体的管道，适用于有或无压力调节且每个出口流速不超过24 l/h（冲洗期间除外）的发射器和发射装置，以及专用于连接发射管的配件，软管和管子。它不适用于多孔管道（沿其整个长度为多孔的管道），也不涵盖管道在堵塞方面的性能。

ISO 9261:2004 gives mechanical and functional requirements for agricultural irrigation emitters and emitting pipes, and, where applicable, their fittings, and provides methods for testing conformity with such requirements. It also specifies the data to be supplied by the manufacturer to permit correct information, installation and operation in the field. It is applicable to emitters, emitting and dripping (trickling) pipes, hoses, including collapsible hoses ("tapes") and tubing of which the emitting units form an integral part, to emitters and emitting units with or without pressure regulation and with flow rates not exceeding 24 l/h per outlet (except during flushing), as well as to fittings dedicated to the connection of emitting pipes, hoses and tubing. It is not applicable to porous pipe (pipe that is porous along its entire length), nor does it cover the performance of pipes as regards clogging.