ISO 899-1-2017 PDF

Full title and description

ISO 899-1:2017 — Plastics — Determination of creep behaviour — Part 1: Tensile creep. Specifies a standardized tensile-creep test method for plastics using dumb-bell-shaped specimens, covering requirements for specimen preparation, test environment and measurement to produce engineering‑design and research data.

Abstract

ISO 899-1:2017 defines a procedure to determine tensile creep of plastics under specified pretreatment, temperature and humidity. It is applicable to rigid and semi-rigid non-reinforced, filled and fibre‑reinforced plastics in the form of moulded or machined dumb‑bell specimens. The method supports engineering‑design (extensometer measurement recommended) and research/quality‑control applications (nominal extension between grips may be used).

General information

• Status: Published (confirmed in ISO review cycle).
• Publication date: 2017 (Edition 3 — published September 2017; implemented in some catalogues from 2 October 2017).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 83.080.01 (Plastics in general).
• Edition / version: Edition 3 (2017).
• Number of pages: 14 (ISO published document length).

Core bibliographic and status details as published by ISO and national catalogues.

Scope

Specifies a tensile‑creep test for plastics in the form of standard dumb‑bell specimens under controlled pretreatment, temperature and humidity. The scope covers rigid and semi‑rigid non‑reinforced, filled and fibre‑reinforced plastics; describes recommended measurement techniques (extensometer for engineering‑design accuracy), specimen preparation considerations, and the need to control thermal history and environmental conditions when obtaining comparative or design data. The method is intended to provide data across a range of stresses and times for engineering‑design and research purposes.

Key topics and requirements

• Defined tensile‑creep test method for dumb‑bell specimens (load application, timing, and measurement).
• Specimen preparation and dimensions, including moulding or machining instructions and influence of thermal history (see Annex A).
• Environmental conditioning and control (temperature, humidity) before and during testing.
• Measurement recommendations: use of extensometers for engineering‑design data; optional grip‑to‑grip (nominal) extension for QC or research.
• Guidance to test over broad ranges of stress, time and environmental conditions when using data for design.
• Applicability to non‑reinforced, filled and fibre‑reinforced plastics (notes on limitations for certain material geometries/orientations).

Typical use and users

Used by materials laboratories, polymer test houses, R&D teams, quality control units, material suppliers and design engineers who require standardized long‑term tensile behaviour data for plastics. Typical applications include material selection, lifetime prediction, product design validation and comparative quality assessments.

Related standards

Standards commonly referenced alongside ISO 899‑1 include ISO 291 (standard atmospheres for conditioning and testing), ISO 472 (plastics vocabulary/definitions) and ISO 527‑1 (determination of tensile properties — general principles). ISO 899 is a multipart series (e.g., ISO 899‑2:2024 for flexural creep by three‑point loading).

Keywords

plastics; creep; tensile creep; long‑term properties; extensometer; test method; specimen preparation; conditioning; ISO 899; mechanical behaviour.

FAQ

Q: What is this standard?

A: ISO 899‑1:2017 is the ISO test method that specifies how to determine tensile creep of plastics using standard dumb‑bell specimens under controlled environmental and pretreatment conditions.

Q: What does it cover?

A: It covers specimen preparation, conditioning, test procedure, measurement techniques (extensometer recommended for design data), and reporting for tensile‑creep behaviour of rigid and semi‑rigid plastics (including filled and fibre‑reinforced types).

Q: Who typically uses it?

A: Materials testing laboratories, polymer R&D groups, quality control teams, material suppliers and product design engineers who need standardized tensile‑creep data for selection, comparison and lifetime/design calculations.

Q: Is it current or superseded?

A: ISO 899‑1:2017 is the current published edition (Edition 3, 2017) and was reviewed in ISO's normal five‑year cycle; the ISO record indicates it remains the active international standard as confirmed in its review.

Q: Is it part of a series?

A: Yes — ISO 899 is a multipart series addressing creep behaviour of plastics; Part 1 covers tensile creep and other parts cover different loading modes (for example ISO 899‑2 covers flexural creep by three‑point loading, published 2024).

Q: What are the key keywords?

A: Plastics; creep; tensile creep; long‑term mechanical behaviour; test method; extensometer; specimen conditioning; ISO 899.