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BIFMA G1-2002 Ergonomics Guideline For VDT
BIFMA, Feb 2002, Pages: 80
The Ergonomics Guideline for VDT (Visual Display Terminal) Furniture used in Office Work Spaces, referred to throughout this document as “the Guideline”, quotes the measurable ergonomics guiding principles and design requirements of the international standards published by the International Organization for Standardization, (ISO) 9241 Ergonomic Requirements for Office Work, Part 3: Visual Display Requirements (1992) and (ISO) 9241 Work Station Layout and Postural Requirements, Part 5 (1998).
ISO 9241-3 and 9241-5 represent accepted principles for office ergonomics. They also provide guidance for evaluating workstation furniture that conforms to the body sizes of the working population. Because body sizes vary widely in different parts of the world, ISO 9241-3 and ISO 9241-5 do not provide specific dimensions for workstation components such as chairs and work surfaces.
This Guideline also considered the dimensions and adjustment ranges as they appear in ANSI/HFS 100 (1988), CAN/CSA Z412 (2000) and CAN/CGSB 44-232 (1997) and 44-227 (1997). Where reference information is incomplete, conflicting or impractical, this Guideline suggests commonly used industry practices.
The application of the concept of Fit, as defined by ISO 9241-5, 4.3, is the primary consideration of this Guideline:
“Selection and design of furniture and equipment requires a fit to be achieved between a range of task requirements and the needs of users. The concept of fit concerns the extent to which furniture and equipment (work chairs, work surfaces, visual display units, input devices, etc.) can accommodate individual users’ needs.
Good fit is needed for the intended user population including users sharing workstations and users with special needs, e.g. handicapped persons. Fit can be accomplished by furniture built for a specified use (or user), or be provided in a range of sizes and forms or by adjustability and combinations thereof. Since, except under special circumstances, workstations cannot be custom-made for individual users, some alternative forms of ensuring a good fit are required. The extent to which the workstation provides a good fit between the requirements of users and their work should be of primary consideration.”
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