Devices for Use in Defining and Measuring Vehicle Seating Accommodation J826_200811

DOI: https://doi.org/10.4271/J826_200811

Issuing Committee: Human Accom and Design Devices Stds Comm

Publisher: SAE International

Pages: 32

Rationale: The March 2008 revision incorporated an inspection procedure for checking calibration of the H-point machine (Appendix C). It also added specifications for the mounting surface of the head restraint measuring device. Other changes included: - 10 year phase-out period for the HPM - Revision of HPM weight specification from 167 to 169.6 lb to reflect current HPM build - New ambient humidity specification - Narrower range of ambient test temperatures - Clarification of muslin cloth specification - Extensive revision of short couple method and addition of long couple method to Appendix A - Terminology consistent with SAE J1100 - Editorial clarifications This revision adds a check for knee and ankle rotation efforts to Appendix C. It also corrects an error in the specification for the H1 divot rearward to the vertical angle block surface. In addition, the length of the optional CAD shoe was changed from 200 to 203 mm to align with the current shoe length. A few other minor editorial changes were made to the text and to Figure A4. SAE J4002 (HPM-II) and SAE J826 (HPM) shall co-exist for a transition period of at least 10 years, preferably no longer, from the first publication date of SAE J4002 (August 2005). Following this transition period SAE J826 will be withdrawn. During the transition period, it remains up to the vehicle designers to decide which HPM to use. Regulatory bodies and other parties that need to know shall be informed regarding which HPM was used.