Methods of test for full-flow lubricating oil filters for internal combustion engines - Inlet and outlet anti-drain valve tests
Current, Under Review
•
Published:
1 Scope
This part of ISO 4548 specifies methods of measuring the effectiveness of either inlet or outlet anti-drain valves if fitted to a full-flow lubricating oil filter of the “spin-on” or “easy change” type, for internal combustion engines.