30.60 Feb 20, 2026
ISO
ISO/TC 70
International Standard
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.
PUBLISHED
ISO 4548-9:2008
PROJECT
ISO/CD 4548-9
30.60
Close of voting/ comment period
Feb 20, 2026