ISO 11424:2023

International Standard   Current Edition
· Approved on 20 July 2023 ·

Rubber hoses and tubing for air and vacuum systems for internal-combustion engines — Specification

ISO 11424:2023 Files

null Pages
Current Edition

ISO 11424:2023 Scope

This document specifies requirements for rubber hoses and tubing for use in the various air and vacuum systems found on internal combustion engines. This document does not cover hoses used for direct power-brake actuation in trucks and trailers, nor for air intakes and ducting within the passenger compartment. The highest-temperature hoses are generally used for turbocharger applications. All hoses and tubing remain serviceable down to −40 °C.

NOTE       Although the term vacuum is generally used, in reality the application is one of reduced air pressure used for the purposes of actuation or monitoring of the various engine-system components. The air carried by the tubing or hoses can be clean and free of contaminants but can also contain oil, fuel and their vapours as contamination, due to the particular installation and application.

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