ISO 10466-2021 PDF

Full title and description

ISO 10466:2021 — Glass-reinforced thermosetting plastics (GRP) pipes — Test method to prove the resistance to initial ring deflection. This International Standard specifies a laboratory test method for determining the ability of GRP pipes to withstand specified levels of initial ring deflection without showing surface damage or structural failure.

Abstract

This document defines a compressive ring-deflection test for glass‑reinforced thermosetting‑plastic (GRP) pipes, covering apparatus (compressive‑loading machine, plates, beam bars), specimen preparation and conditioning, procedure for applying load and measuring vertical deflection, and the required test report. The goal is to verify that pipes tolerate specified initial ring deflections without visible surface damage or structural failure.

General information

• Status: Published.
• Publication date: 12 April 2021 (Edition 2, 2021).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 23.040.20 (Plastics pipes).
• Edition / version: Edition 2 (2021).
• Number of pages: 7 pages.

Scope

ISO 10466:2021 applies to glass‑reinforced thermosetting plastics (GRP) pipes and specifies a standardized test method to prove resistance to an initial ring deflection. The standard describes the test specimen dimensions, apparatus (including compressive‑loading machine, plates and beam bars), conditioning, test temperature, positioning of the specimen, application of load and measurement of vertical deflection (absolute and relative to mean diameter), and the format of the test report. The method is intended to demonstrate whether a given level of initial ring deflection produces surface damage or structural failure in GRP pipe specimens.

Key topics and requirements

• Purpose: establish resistance of GRP pipes to initial ring (vertical) deflection without surface damage or failure.
• Specimen definition and dimensions: mean diameter, wall position for measurement and test‑piece length requirements.
• Apparatus: requirements for compressive‑loading machine, plates and beam bars (dimensions and support to avoid additional contact).
• Conditioning and test temperature: conditioning of specimens prior to testing and specified test temperature.
• Procedure: choice of load application surfaces, positioning of the test piece, application of load, measurement of deflection (absolute and relative y/dm) and recording of results.
• Acceptance/interpretation: assessment based on absence of visible surface damage and structural failure at the specified deflection levels.
• Normative references: includes dimensional references such as ISO 3126 (plastics piping components — determination of dimensions).

Typical use and users

Manufacturers of GRP pipes, independent test laboratories, product designers and specifiers, certification bodies and infrastructure/regulatory authorities use this standard to verify mechanical performance against ring‑deflection requirements during product development, quality control, type testing and acceptance testing for buried and above‑ground applications.

Related standards

ISO 10466:2021 replaces ISO 10466:1997 (withdrawn). Normative and related references include ISO 3126 (determination of dimensions for plastics piping components) and other plastics‑pipe test standards such as ISO 9969 (ring stiffness for thermoplastic pipes) and other ISO/TC 138 publications covering GRP systems and performance. These related documents provide complementary test methods and dimensional/functional requirements used alongside ISO 10466.

Keywords

GRP, glass‑reinforced thermosetting plastics, pipes, ring deflection, ring stiffness, compressive loading, beam bars, test method, ISO/TC 138.

FAQ

Q: What is this standard?

A: ISO 10466:2021 is an international standard that specifies a laboratory test method to prove the resistance of GRP (glass‑reinforced thermosetting‑plastic) pipes to initial ring deflection.

Q: What does it cover?

A: It covers apparatus, specimen preparation and conditioning, the procedure for applying compressive load and measuring vertical (ring) deflection, and the required test report; the pass/fail assessment is based on the absence of visible surface damage or structural failure at specified deflection levels.

Q: Who typically uses it?

A: GRP pipe manufacturers, independent testing laboratories, product designers, conformity assessment bodies and regulators responsible for specifying or verifying mechanical performance of GRP piping systems.

Q: Is it current or superseded?

A: Current — ISO 10466:2021 (Edition 2, published April 2021) is the active standard and it supersedes ISO 10466:1997 (withdrawn).

Q: Is it part of a series?

A: It forms part of the family of ISO standards developed by ISO/TC 138 (Plastics pipes) and specifically SC 6 activities on reinforced‑plastics pipes and fittings; it is used alongside other plastics‑pipe standards (dimensions, stiffness and system specifications).

Q: What are the key keywords?

A: GRP, glass‑reinforced thermosetting plastics, initial ring deflection, ring test, ring stiffness, compressive loading, pipe test method, ISO 10466.