ISO/PWI 4548-9

Methods of test for full-flow lubricating oil filters for internal combustion engines — Part 9: Inlet and outlet anti-drain valve tests

General information

Current stage: 00.00 Effective date: Jan 25, 2023

Originator: ISO

Owner: ISO/TC 70/SC 7

Type: International Standard

Scope

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.

Life cycle

PREVIOUSLY

Revises
ISO 4548-9:2008

NOW

IN_DEVELOPMENT
ISO/PWI 4548-9
00.00 Proposal for new project received
Jan 25, 2023

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