ISO 22389-1-2010 PDF

Full title and description

ISO 22389-1:2010 — Timber structures — Bending strength of I‑beams — Part 1: Testing, evaluation and characterization. This part specifies requirements and test/evaluation procedures for prefabricated wood‑based I‑beams used as structural bending members, covering capacities such as shear, moment, stiffness, bearing and flange tension/compression and addressing common details and end‑use considerations for covered (not permanently exposed) conditions.

Abstract

ISO 22389-1:2010 establishes test methods and evaluation procedures to determine and characterise the bending performance of prefabricated wood‑based I‑beams. It defines how to assess shear, bending moment, stiffness, bearing resistance and flange behaviour, and sets out requirements for specimen preparation, testing, result evaluation and reporting for use in structural design and product assessment. The document excludes permanent outdoor exposure, fire performance, formaldehyde limits and biological durability.

General information

• Status: Published (under systematic review / confirmed in review cycles).
• Publication date: 10 May 2010.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 91.080.20 — Timber structures.
• Edition / version: Edition 1 (2010).
• Number of pages: 23 pages (ISO bibliographic record).

Scope

This part of ISO 22389 specifies testing and evaluation requirements for prefabricated wood‑based I‑beams intended as structural members in bending applications under covered conditions (not for permanent outdoor exposure). It provides procedures to establish design and performance characteristics — including shear, moment, stiffness, bearing and flange tension/compression — and gives rules for common details and end‑use considerations; it does not cover fire performance, formaldehyde requirements or biological durability. For manufacturing, in‑house QA and component performance requirements see ISO 22389‑2.

Key topics and requirements

• Test methods and specimen preparation for bending, shear and flange tests.
• Procedures to evaluate moment capacity, stiffness (deflection behaviour) and shear strength.
• Evaluation of bearing resistance and flange tension/compression performance.
• Sampling, statistical evaluation and reporting of test results for design value derivation.
• Requirements and guidance for common details and end‑use considerations (service conditions: covered/service‑class 2‑like situations).
• Explicit exclusions: permanent outdoor exposure, fire performance, formaldehyde limits and biological durability are not covered.
• Cross‑reference to part 2 for component performance and manufacturing/quality assurance requirements.

Typical use and users

Used by manufacturers of prefabricated wood‑based I‑beams, product testing laboratories, structural engineers and designers, certification and conformity assessment bodies, building code authorities and researchers developing or validating design values and product specifications for timber I‑beam applications. The standard supports product acceptance testing, type‑testing for qualification and the derivation of design properties for use in structural calculations.

Related standards

Relevant documents and related standards include ISO 22389-2 (Component performance and manufacturing requirements, 2020 edition), regional/national timber design standards such as Eurocode 5 (EN 1995-1-1) for timber design rules, and ASTM specifications and test methods covering engineered wood and structural composite lumber (for example ASTM D5456 series). Also associated are national product and certification documents referenced by manufacturers and regulatory bodies.

Keywords

Timber structures; I‑beams; wood‑based I‑beams; bending strength; shear; stiffness; flange tension; bearing; testing; evaluation; characterization; ISO 22389; prefabricated I‑beams.

FAQ

Q: What is this standard?

A: ISO 22389‑1:2010 is the first part of the ISO 22389 series and specifies testing, evaluation and characterisation methods for the bending performance of prefabricated wood‑based I‑beams.

Q: What does it cover?

A: It covers procedures to establish and evaluate structural capacities (shear, moment, stiffness, bearing and flange tension/compression), specimen preparation, testing, data analysis and reporting for I‑beams used in bending; it excludes fire performance, formaldehyde limits and biological durability. For manufacturing and QA requirements see ISO 22389‑2.

Q: Who typically uses it?

A: Manufacturers of wood‑based I‑beams, testing laboratories, structural engineers, certification bodies, building authorities and researchers involved in product qualification and derivation of design values.

Q: Is it current or superseded?

A: The original publication date is 10 May 2010 (Edition 1). ISO records show the standard as published and subject to ISO’s periodic systematic review process; it has been maintained in ISO’s lifecycle and remains the authoritative Part 1 document for testing/evaluation (check national bodies or ISO for the latest confirmation or any amendments). For component/manufacturing requirements a later Part 2 edition (2020) exists.

Q: Is it part of a series?

A: Yes — ISO 22389 is a multi‑part series. Part 1 covers testing, evaluation and characterisation; Part 2 covers component performance and manufacturing requirements (latest edition 2020). The series is prepared by ISO/TC 165 (timber structures).

Q: What are the key keywords?

A: Timber structures, I‑beams, wood‑based I‑beams, bending strength, testing, evaluation, stiffness, shear, flange, bearing.