ISO 11425:2018

Rubber hoses and hose assemblies for automobile power-steering systems — Specification

This document specifies requirements for five types of hose and hose assembly used in automobile power-steering systems, the five types differing in their pressure ratings and volumetric expansion. They are for use with fluids in the temperature range −40 °C to +135 °C. This document is based on performance tests. In order to take account of technological developments, no requirements are included for specific materials, detailed construction or manufacturing methods.

Tuyaux et flexibles en caoutchouc pour circuits de direction assistée — Spécifications

General Information

• Status: Published
• Publication Date: 30-Oct-2018
• ICS: 43.040.50 - Transmissions, suspensions
• ICS: 83.140.40 - Hoses
• Technical Committee: ISO/TC 45/SC 1 - Rubber and plastics hoses and hose assemblies
• Drafting Committee: ISO/TC 45/SC 1/WG 2 - Automotive hoses
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 25-Sep-2023

Relations

• Revises: ISO 11425:1996 - Rubber hoses and hose assemblies for automobile power-steering systems — Specification
• Effective Date: 07-Apr-2018

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 11425
Second edition
2018-11
Rubber hoses and hose assemblies for
automobile power-steering systems —
Specification
Tuyaux et flexibles en caoutchouc pour circuits de direction
assistée — Spécifications
Reference number
ISO 11425:2018(E)
©
ISO 2018

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ISO 11425:2018(E)

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ii © ISO 2018 – All rights reserved

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ISO 11425:2018(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Types of hose . 2
5 Construction and materials . 2
6 Dimensions and tolerances . 2
7 Performance requirement . 3
7.1 Impulse resistance . 3
7.2 Burst pressure requirement . 3
7.3 Change in length . 3
7.4 Low-temperature flexibility . 3
7.5 Adhesion . 4
7.6 Ozone resistance. 4
7.7 Volumetric expansion. 4
7.8 Contamination . 4
7.9 Corrosion of end fittings . 4
7.10 Proof pressure requirement . 4
7.11 Cold-start requirement (type approval test for type 4 hose assemblies only) . 4
7.11.1 Requirement .
...