ISO 7751-2016 PDF

Full title and description

ISO 7751:2016 — Rubber and plastics hoses and hose assemblies — Ratios of proof and burst pressure to maximum working pressure. This International Standard specifies the required ratios between proof pressure, minimum burst pressure and the declared maximum working pressure for various categories of hose service, and provides a concise normative reference for pressure‑related safety and testing criteria for hose products.

Abstract

ISO 7751:2016 defines the ratios to be used when relating proof pressure and minimum burst pressure to the maximum working pressure for rubber and plastics hoses and hose assemblies. The Standard does not describe test methods themselves (these are given in ISO 1402 and related test standards) but establishes the required safety factors expressed as pressure ratios for different hose service categories.

General information

• Status: Published / Valid
• Publication date: November 2016 (Edition 3).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 23.040.70 (Hoses and flexible tubing).
• Edition / version: 3 (2016).
• Number of pages: 3 pages.

Scope

ISO 7751:2016 applies to rubber and plastics hoses and hose assemblies and specifies the ratios of proof pressure and minimum burst pressure to the declared maximum working pressure for the various hose service categories. It is intended to be used alongside product‑specific hose standards and hydrostatic testing standards (for example ISO 1402) that define test methods and procedures.

Key topics and requirements

• Defined ratios for proof pressure to maximum working pressure (safety/proof factor).
• Defined minimum burst pressure ratios to maximum working pressure (burst factor).
• Applicability to different hose service categories (as referenced by product standards).
• Normative linkage to hydrostatic and burst test methods (tests are performed according to ISO 1402 and similar test standards).
• Short, normative specification intended for reference within product specifications and test reports.

Typical use and users

ISO 7751:2016 is used by hose designers, manufacturers, test laboratories, quality and compliance engineers, purchasing/specification engineers in industries using fluid transfer hoses (hydraulic, pneumatic, steam, fuel, chemical, general industrial). It is referenced within product standards, test procedures and technical datasheets to ensure consistent safety margins for pressure‑rated hoses and assemblies.

Related standards

Commonly used together with ISO 1402 (Hydrostatic testing of rubber and plastics hoses and hose assemblies) which defines test methods and procedures for proof and burst tests. ISO 7751 replaces earlier editions (ISO 7751:1991 and subsequent amendment) and is cited by various product‑specific hose standards and national/adopted versions (for example EN/BS adoptions and combined ISO/EN documents).

Keywords

hose, hoses, hose assemblies, rubber hoses, plastics hoses, proof pressure, burst pressure, maximum working pressure, pressure ratios, hydrostatic testing, ISO 7751, ISO/TC 45

FAQ

Q: What is this standard?

A: ISO 7751:2016 is an International Standard that specifies the ratios of proof pressure and minimum burst pressure to the declared maximum working pressure for rubber and plastics hoses and hose assemblies.

Q: What does it cover?

A: It covers the numerical ratios (safety factors) that relate proof and burst pressures to maximum working pressure for different hose service categories. It does not describe the hydrostatic or burst test procedures themselves (those are given in ISO 1402 and related standards).

Q: Who typically uses it?

A: Hose manufacturers, test laboratories, quality engineers, design engineers, specification writers and purchasers in industries that use fluid transfer hoses.

Q: Is it current or superseded?

A: ISO 7751:2016 is the current (third) edition published in 2016; earlier editions (for example ISO 7751:1991 and its amendment) were withdrawn and replaced by the 2016 edition. The standard is maintained under ISO systematic review procedures.

Q: Is it part of a series?

A: ISO 7751 is a short, topic‑specific standard used alongside other hose‑related standards (notably ISO 1402 for hydrostatic testing and various product family standards and vocabulary standards such as ISO 8330) rather than being part of a numbered "series" of contiguous standards.

Q: What are the key keywords?

A: proof pressure, burst pressure, maximum working pressure, hose assemblies, rubber hose, plastics hose, pressure ratios, hydrostatic testing.