PDF Standards BIFMA X5.1-2017

PDF Standards BIFMA X5.1-2017

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  • March 11, 2023

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This standard is intended to provide manufacturers, specifiers, and users with a common basisfor evaluating the safety, durability, and structural adequacy of general-purpose office chairs.General-purpose office chairs are normally used in an office environment and may include, butare not limited to those seating styles typically referred to as: executive/management,task/secretarial, side/guest chairs, nesting folding chairs, tablet arm chairs and stools.

This standard describes the means of evaluating general-purpose office chairs, independent ofconstruction materials, manufacturing processes, mechanical designs or aesthetic designs.This standard does not address lounge seating, flammability, surface material durability,cushioning materials, product emissions, or ergonomic considerations.

The standard defines specific tests, the laboratory equipment that may be used, the conditionsof tests, and the minimum acceptance levels to be used in evaluating general-purpose officechairs. The acceptance levels and test parameters given in this standard are based on theactual field use and test experience of BIFMA members. Where appropriate, the NationalHealth and Nutrition Examination Survey (NHANES) 2007-2010 study, which indicates theweight of the 95th percentile male is 125 kg (275 pounds), was used in the development of thetests. This does not mean that users with weights above the percentiles referenced cannotsafely or comfortably use a chair developed to a given BIFMA standard. (See also Appendix E).The tests were developed with an estimated product life of ten years based on single-shiftusage. Product life will be affected by user size/weight, product use, care and maintenance,environment, and other factors, and, as such, product compliance to this standard does notnecessarily guarantee a ten-year product life.

The tests in this standard are intended to assess the performance of new products only. Theyare not intended to assess a product that has been in use.

ISO 17025 requirements for measurement uncertainty do not apply to this standard.

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