Published
ISO 4548-9:2007 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.
WITHDRAWN
ISO 4548-9:1995
PUBLISHED
ISO 4548-9:2008
90.92
Standard to be revised
May 26, 2025
PROJECT
ISO/CD 4548-9
Methods of test for full-flow lubricating oil filters for internal combustion engines — Part 9: Inlet and outlet anti-drain valve tests
90.92 Standard to be revised