ISO 3323:2023
Aircraft — Hydraulic components — Marking to indicate the fluid for which a component is approved

Standard No.

ISO 3323:2023

Release Date

2023

Published By

International Organization for Standardization (ISO)

Latest

ISO 3323:2023

Scope

This document establishes a scheme for the marking of components (other than pipelines, hoses and fittings) used in aircraft hydraulic systems, so that the correct type of fluid is readily apparent during any assembly or testing operations in workshops. The marking is not intended to serve any purpose when a component is installed in an aircraft.

ISO 3323:2023 history

• 2023 ISO 3323:2023 Aircraft — Hydraulic components — Marking to indicate the fluid for which a component is approved
• 1987 ISO 3323:1987 Aircraft; Hydraulic components; Marking to indicate fluid for which component is approved
• 1976 ISO 3323:1976 Aircraft — Hydraulic components — Marking to indicate fluid for which component is approved