本标准涵盖的产品是安装在家用洗碗机排水管中的装置。该装置的目的是防止被污染的液体和夹带的物质回流到洗碗机中。注:ASSE将1021列为非活动标准。

Products covered by the standard are devices for installation in the drain line of residential dishwashers. The purpose of this device is to prevent the backflow of contaminated liquid and entrained material into the dishwasher.Note: ASSE Lists 1021 as an Inactive Standard.