IS 12785-1989

标准号：IS 12785-1989
发布日期：1990/2/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This standard specifies the general construc-tion requirements and test methods for strainer-type filters ( strainers ) intended for operation in agricultural irrigation system.1.1.1 This standard does not cover filtration ability, efficiency and capacity ( quality of filtered water, time of operation before strainer becomes completely clogged, etc), nor does it deal with strainers that have integral automatic flushing devices.NOTE — Requirements and methods of testing filtration ability are under study, and will be added later.