ISO 15873:2002 PDF

Scope: This standard specifies the design, operating instructions and test methods of "Venturi type differential pressure liquid addition ejector". This "Venturi differential pressure liquid addition injector" is used in irrigation systems to inject soluble chemicals into the system, including liquid fertilizers, water-soluble liquid fertilizers, acids, corrosive solutions, pesticides, herbicides and others Liquid additives. This standard does not include backflow prevention devices in drinking water supply systems. Installation devices close to venturi jets are included in the waterproofing measures details.

ISO 15873:2002 Referenced Document

GB/T 2828.1-2003 Sampling procedures for inspection by attributes--Part 1: Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection*， 2003-09-15 Update
GB/T 7306.1-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads Part 1:Parallel internal and taper external threads

2002 ISO 15873:2002 Irrigation equipment - Differential pressure Venturi-type liquid additive injectors