BS ISO 16840-3:2014
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Wheelchair seating Determination of static, impact and repetitive load strengths for postural support devices
Hardcopy , PDF
25-10-2022
English
31-07-2016
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Test apparatus
5 Failure modes
6 Preparation of PSD for testing
7 Test methods for static strength of PSDs
8 Test methods for impact strength
9 Test methods for repetitive load
10 Test report
11 Disclosure requirement
Describes test methods for the determination of static, impact, and repetitive load strengths as well as disclosure requirements for postural support devices (PSD) with associated attachment hardware intended for use with an undefined wheelchair.
| Committee |
CH/173/1
|
| DevelopmentNote |
Supersedes 13/30275212 DC. (03/2014)
|
| DocumentType |
Standard
|
| Pages |
42
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This part of ISO 16840 specifies test methods for the determination of static, impact, and repetitive load strengths as well as disclosure requirements for postural support devices (PSD) with associated attachment hardware intended for use with an undefined wheelchair.
This part of ISO 16840 does not apply to the strength of PSDs under crash conditions in a motor vehicle.
This part of ISO 16840 does not apply to PSDs that are designed to fail under certain static, dynamic, or repetitive loads.
NOTE 1 ISO 16840-4 provides test methods and requirements for some PSDs when used as part of a wheelchair seat in a motor vehicle.
NOTE 2 Performance criteria have been established in some of the defined tests. In others, no minimum requirements are currently specified.
NOTE 3 For masses greater than 150 kg or less than 25 kg, appropriate extrapolation of test apparatus dimensions, mounting point separation, etc. are permitted.
NOTE 4 Rigid surrogate test fixtures are utilized to provide a worst-case situation, and consequently this part of ISO 16840 does not test a PSD on a particular wheelchair.
NOTE 4 Rigid surrogate test fixtures are utilized to provide a worst-case situation, and consequently this part of ISO 16840 does not test a PSD on a particular wheelchair.
NOTE 5 If one PSD achieves a higher loading at the point of failure than another, it does not necessarily mean that it is better or worse. The type of failure and flexibility of the PSD can be considered as well. The maximum offset distance to the centre of the PSD from the adjacent attachment point can also be considered.
| Standards | Relationship |
| ISO 16840-3:2014 | Identical |
| ISO 898-7:1992 | Mechanical properties of fasteners Part 7: Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm |
| ISO 7176-15:1996 | Wheelchairs — Part 15: Requirements for information disclosure, documentation and labelling |
| ISO 7176-8:2014 | Wheelchairs Part 8: Requirements and test methods for static, impact and fatigue strengths |
| ISO 16840-2:2007 | Wheelchair seating Part 2: Determination of physical and mechanical characteristics of devices intended to manage tissue integrity Seat cushions |
| ISO 554:1976 | Standard atmospheres for conditioning and/or testing — Specifications |
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