Describes method for evaluating the pressure drop versus flow characteristics of industrial oil hydraulic filters and provides a basis of agreement between the filter manufacturer and user. Two standards of measurement are given : class A - for accurate evaluation for referee purposes - requiring laboratory conditions and class B - for evaluation for general purposes - requiring test facilities less stringent than laboratory conditions. Also sets out a method of measuring the pressure drop across a hydraulic fluid filter under various conditions of flow.

BS ISO 3968 : 2017

ISO 3968 : 2017 - Identical