ISO/IEC 9899-2018 pdf free.Wheelchairs — Determination of maximum speed ofelectrically powered wheelchairs.
This document specifies test methods for determining the maximum speed of electrically poweredwheelchairs,including scooters,intended to carry one person with a maximum nominal speed notexceeding 15 km/h (4,167 m/s) on a level surface.
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references,only the edition cited applies. Forundated references, the latest edition of the referenced document(including any amendments) applies.ISO 7176-11, Wheelchairs — Part 11:Test dummies.
ISo 7176-13, Wheelchairs — Part 13: Determination of coefficient of friction of test surfaces.
ISO 7176-15,Wheelchairs— Part 15: Requirements for information disclosure, documentation and labellingISO 7176-22, Wheelchairs — Part 22:Set-up procedures.No terms and definitions are listed in this document.
Instrumentation, that may need to be added to the test dummy, in which case its mass shall notexceed 5 % of the total dummy mass.
Horizontal test plane, made up of a rigid,flat, horizontal surface of sufficient size to conduct thetests and with a coefficient of friction that meets the requirements of IS0 7176-13.NOTE The floor of a typical large building used for manufacturing or indoor leisure with, for example, aconcrete, asphalt or wooden floor is acceptable.Speed measurement device, to measure and record speed up to 5 m/s with an accuracyof ± 0,1m/s and a sample rate of at least 60 Hz.Test dummy, as specified in IS0 7176-11, or a human test occupant according to IS0 7176-22.Mass added to the wheelchair for the purposes of control or instrumentation should not significantlyaffect the overall mass distribution of the wheelchair. The overall mass of the loaded wheelchair shallbe adjusted to compensate for any such added mass.
Supplementary weight, shall be added to a human test driver to give the mass distributionequivalent to the relevant dummy.
Prepare the test wheelchair as follows before commencing the sequence of tests.Set up the wheelchair as specified in IlSO 7176-22.Set any controls which are accessible to the user without special tools and which influence the maximum speed to provide a maximum value.NOTE These controls include programmable controls, touch pads, computer interfaces, etc.lf a dummy is used, a remote controller may be used to operate the wheelchair controls. This may be done by a telemetry system, by an operator running alongside or by other similar means.ISO/IEC 9899 pdf download.