ISO 24496-2021 PDF

Full title and description

St ISO 24496-2021 — Office furniture — Office chairs — Methods for the determination of dimensions. This international standard specifies standardized measurement methods and procedures (and a chair measuring device concept) to determine the dimensions of office seating so that chairs can be compared and related to anthropometric data; it does not prescribe dimensional requirements for chairs.

Abstract

ISO 24496:2021 (Edition 2) defines measurement methods for determining the physical dimensions of office chairs. The document introduces a reference seating posture and measurement procedures, revises and harmonizes symbols and dimension definitions used in prior national and industry methods, and describes a Chair Measuring Device (CMD) concept to improve repeatability and comparability of dimensional data between laboratories and manufacturers. The standard is focused on methods only and explicitly does not set pass/fail dimensional requirements.

General information

• Status: Published.
• Publication date: February 2021 (Edition 2, 2021-02).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 97.140 (Furniture).
• Edition / version: Edition 2 (2021).
• Number of pages: 62 pages.

Scope

This standard specifies methods for the determination of dimensions of office chairs. It provides measurement definitions, procedures, and drawings to record a comprehensive set of chair dimensions in a repeatable way; it is intended to be used alongside other documents that set dimensional requirements where needed. The document does not contain dimensional performance requirements or tolerances for conformity assessment.

Key topics and requirements

• Standardized measurement methods for a broad set of chair dimensions (seat, backrest, armrests, base, etc.).
• Definition and use of a reference seating posture to relate chair dimensions to anthropometry.
• Specification and recommendations for a Chair Measuring Device (CMD) concept to improve measurement repeatability.
• Revisions and harmonization of symbols, figure references and selected dimension definitions compared with earlier national/industry methods.
• The document contains informative annexes (including rationale) and an updated bibliography to support the measurement provisions.

Typical use and users

ISO 24496:2021 is used by office furniture manufacturers, product designers, ergonomic specialists, testing laboratories, procurement/specification teams, standards bodies and conformity assessment organizations to record and report chair dimensions in a consistent manner and to compare product geometry across models and suppliers. It is also used by researchers linking chair geometry to anthropometric and ergonomic studies.

Related standards

Standards referenced or closely related include ergonomics and anthropometry documents (for example ISO 9241-5, ISO 7250-1, ISO 20685), as well as national and industry chair measurement standards and CMD references such as BIFMA CMD-1, EN 1335 series, DIN 4551 and others. The 2021 edition replaces the 2017 edition of ISO 24496.

Keywords

office furniture; office chairs; dimensions; measurement methods; chair measuring device; CMD; anthropometry; ergonomics; ISO 24496; seat dimensions; backrest width.

FAQ

Q: What is this standard?

A: ISO 24496:2021 is an international standard that defines methods for determining the physical dimensions of office chairs (Edition 2, 2021).

Q: What does it cover?

A: It covers standardized measurement definitions, procedures, figures and a Chair Measuring Device (CMD) concept to ensure repeatable, comparable chair dimension data; it does not set dimensional requirements or pass/fail criteria.

Q: Who typically uses it?

A: Manufacturers, designers, testing laboratories, ergonomists, procurement/specification teams and standards organizations use it to measure and report chair dimensions consistently.

Q: Is it current or superseded?

A: The 2021 edition is the current published edition (Edition 2, published in 2021) and replaces the 2017 edition; the ISO entry shows the document as published and under systematic review.

Q: Is it part of a series?

A: ISO 24496 is a standalone standard focused on chair dimension measurement methods; it is related to other ergonomics and furniture standards but is not a numbered multi-part series. It is intended to be used together with relevant ergonomics and anthropometry standards.

Q: What are the key keywords?

A: Office chairs, dimensions, measurement methods, chair measuring device (CMD), anthropometry, ergonomics, ISO 24496.