ISO 10619-1-2017 PDF

Full title and description

ISO 10619-1:2017 — Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness — Part 1: Bending tests at ambient temperature. This part of ISO 10619 defines standardized bending test methods (ambient-temperature) used to determine flexibility, minimum bend radius and bending stiffness of rubber and plastics hoses and tubing.

Abstract

ISO 10619-1:2017 specifies three deformation-based methods for measuring flexibility (A1, B and C1) and two force-based methods for measuring stiffness (A2 and C2) on rubber and plastics hoses and tubing at ambient temperature. The standard indicates applicable inside-diameter ranges for each method, allows testing unpressurised or with specified internal pressure (or vacuum) where relevant, and gives measurement outputs such as reduction in outside diameter (flexibility measures) and force required to reach a specified bend radius (stiffness measures).

General information

• Status: Published (International Standard; version confirmed in review).
• Publication date: 2017-12 (ISO edition 2, published December 2017).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 23.040.70 (Hoses and hose assemblies).
• Edition / version: Edition 2 (2017).
• Number of pages: 12 pages.

Scope

Specifies ambient-temperature bending test methods for determining flexibility and stiffness of rubber and plastics hoses and tubing. Methods A1 and A2 are for hoses/tubing with inside diameter up to and including 80 mm; Method B is suitable up to and including 100 mm; Methods C1 and C2 apply to hoses/tubing with inside diameter of 100 mm and greater. Tests may be performed with the hose unpressurised, pressurised or under vacuum where applicable; results include minimum bend radius (or deformation ratio) and bending force/stiffness.

Key topics and requirements

• Defined bending test procedures at ambient temperature: Methods A1 (deformation), A2 (force), B (mandrel bend), C1 (deformation for large bore) and C2 (stiffness for large bore).
• Applicable inside-diameter ranges for each method (A1/A2 ≤ 80 mm; B ≤ 100 mm; C1/C2 ≥ 100 mm).
• Measurement outputs: deformation ratios (e.g., T/D or reduction in outside diameter), minimum bend radius, and force required to attain specific bend radii (stiffness).
• Options to test hoses unpressurised, at specified internal pressure, or under vacuum; provision for testing with or against pre-existing curvature.
• Requirements for sample preparation, conditioning and repeatable test set-up referenced to relevant ISO practices for rubber test pieces.

Typical use and users

Used by hose and tubing manufacturers for product development and quality control, independent test laboratories for conformance testing, specifiers and purchasers to set minimum bend radius/installation requirements, and R&D/design engineers comparing constructions, materials and pressure/temperature effects on bending behaviour. Procurement and regulatory bodies may reference these tests in product specifications.

Related standards

Typical related documents include: ISO 10619-2 (Bending tests at sub-ambient temperatures — updated to ISO 10619-2:2021), ISO 8330 (vocabulary for hoses and assemblies), ISO 23529 (conditioning and preparation of rubber test pieces), and ISO 4671 (methods for measurement of hose dimensions and lengths). Other product-specific standards (e.g., hydraulic hose standards) reference ISO 10619-1 for minimum bend-radius determinations.

Keywords

hose testing, bending test, flexibility, stiffness, minimum bend radius, flexural stiffness, rubber hoses, plastics hoses, tubing, ambient temperature testing.

FAQ

Q: What is this standard?

A: ISO 10619-1:2017 is an international standard that specifies ambient-temperature bending test methods for measuring the flexibility and stiffness of rubber and plastics hoses and tubing.

Q: What does it cover?

A: It covers five test methods (A1, A2, B, C1, C2) that quantify deformation (flexibility) or force (stiffness) at defined bend radii, and indicates the appropriate inside-diameter ranges and test conditions (unpressurised, pressurised or vacuum) for each method.

Q: Who typically uses it?

A: Hose and tubing manufacturers, independent testing laboratories, design and R&D engineers, specifiers/purchasers and procurement/regulatory bodies that need repeatable measures of bend behaviour and minimum bend radius.

Q: Is it current or superseded?

A: ISO 10619-1:2017 (Edition 2, Dec 2017) is published and, according to ISO, was last reviewed/confirmed (remains the current version as listed on ISO). Users should check the ISO catalogue or their national standards body for any later amendments or reviews before use.

Q: Is it part of a series?

A: Yes — ISO 10619 is a multi-part set. Part 1 covers ambient-temperature bending tests (this document); Part 2 covers bending tests at sub-ambient temperatures (the Part 2 document was revised and published as ISO 10619-2:2021).

Q: What are the key keywords?

A: Flexibility, stiffness, bending test, minimum bend radius, hose testing, rubber hoses, plastics hoses, tubing, ambient temperature.