ISO 9398-4:2002定义了洗衣机抽出器的特性，并给出了有关机器容量、功耗和耗水量以及每小时生产率的这些特性的常用测试方法。本标准适用于起草净可用笼体积大于60 dm（升）的洗衣机提取器的采购订单时作为参考。它不包括安全要求（见ISO 10472-2）。

ISO 9398-4:2002 defines the characteristics of washer-extractors and gives the usual test methods for these characteristics with regard to machine capacity, power and water consumption, and hourly productivity. It is applicable for use as a reference in the drafting of purchasing orders for washer-extractors whose net usable cage volume is greater than 60 dm (litres). It does not cover safety requirements (see ISO 10472-2).