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BS 4220-1:1974
Withdrawn
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Methods of test for seats on agricultural wheeled tractors. Tests on artificial track
Hardcopy , PDF
08-02-2013
English
09-06-1974
Co-operating organizations
Foreword
Specification
1 Scope
2 Definitions
3 Pre-test seat operation
4 The tractor
5 Repairs during tests
6 Calibration
7 Testing
Appendices
A Determination of seat reference point
B Verification of seat dimensions
C Static deflection test
D Lateral stability
E Ride vibration test
F Specimen test report
Tables
1 Ordinates of elevation, in centimetres, with respect
to an arbitrary base-line, smoother track
2 Ordinates of elevation, in centimetres, with respect
to an arbitrary base-line, rougher track
3 Vibration weighting factors
Figures
1 Apparatus for determination of seat reference point
2 Test construction on a seat
3 Schematic diagram of tractor seat position
4 Static deflection curves
5 Frequency weighting filter characteristics of
'ridemeter'
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