1.Lays down methods of test for determining pressure drop/flow characteristics of full-flow lubricating oil filters for internal combustion engines.
1.2 The tests specified in this standard are intended to measure the performance of a filter and its filter element in relation to the design requirements indicated in 4.2 and 4.3.
IS 11509 Pt.1-1985 history
1986IS 11509 Pt.1-1985 Test methods for full flow lubricating oil filters for internal combustion engines Part 1 Pressure drop/flow characteristics