International Organization for Standardization (ISO)
Status
2021-06
Latest
ISO 6549:1999
Scope
This International Standard defines a three-dimensional H-point machine for use in the determination of the actual H-point and torso angle of a seat, for the purpose of comparing these measurements to the manufacturer's seating reference point and design torso angle. The three-dimensional H-point machine is intended to be used as a checking device for one designated seat position at a time and is not a device which measures or indicates an occupant's capabilities or comfort.
This International Standard is applicable to any motor vehicle where:
a) the distance, vertically measured, between the operator heel point and the seating reference point is less than 550 mm,
b) the torso angle is greater than 5°rearward of vertical or where the attitude of the thigh centreline as indicated by the thigh bar is greater than 5°above the horizontal.
ISO 6549:1999 Referenced Document
ISO 3833 Road Vehicle Type Terms and Definitions Technical Corrigendum 1
ISO 4130 Road vehicles; Three-dimensional reference system and fiducial marks; Definitions
ISO 6549:1999 history
1999ISO 6549:1999 Road vehicles - Procedure for H- and R-point determination
1980ISO 6549:1980 Road vehicles; Procedure for H-point determination