ISO 3668:2017 specifies a procedure for evaluating differential pressure versus flow characteristics of hydraulic filters and constitutes a basis for agreement between the filter manufacturer and user.
It also specifies a method for measurement of the differential pressure generated at different flow rates and viscosities by the relevant parts of a filter assembly, spin-on and any valves contained within the filter which are in the flow stream. The typical types of filter to be tested are as follows:
Type 1: which are spin-on filters in which the replaceable unit does not include a filter head (it might or might not include the element by-pass valve);
Type 2: which are spin-on filters in which the replaceable element is tested together with a filter head (it might or might not include the element by-pass valve);
Type 3: which are filter assembly, usually of the replacement element type, that is the housing (head and bowl) and element.
Status: PublishedPublication date: 2017-07
Edition: 3Number of pages: 17
Technical Committee: ISO/TC 131/SC 6 Contamination control
- ICS :
- 23.100.60 Filters, seals and contamination of fluids
This standard contributes to the following Sustainable Development Goal:
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|std 1 92||PDF + ePub|
|std 2 92||Paper|
ISO 3968:2001/Cor 1:2002
A standard is reviewed every 5 years
Stage: 90.93 (Confirmed)
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