RDASEP-Edit-08-04
UN R51: Editing task force clarifications to the draft 04 series of amendments
Source(s)
Date
24 Jul 2026
Status
Subject
Meeting(s)

Proposal to amend Annex 3 and Annex 7 regarding ASEP calculations and temperature corrections:

  • Add reference to nMAX and kp factor for ASEP anchor point calculation in Annex 3, Appendix 1 Table 1,
  • Clarify temperature correction equations and coefficients K1 and K2 by defining them uniquely in para. 3.2.3. and adding missing index j references in Annex 3, Appendix 2 paras. 3.2.3., 3.2.4., 3.3.3. and 3.3.4.,
  • Delete from Annex 7 para. 5.2. a sentence regarding gear ratios for ASEP Lref that was wrongly introduced in Supplement 10 (GRBP-79-33/Rev.1).

UNECE server
Excerpts from session reports
GRBP | Session 79 | 6-9 Feb 2024

7. The expert from OICA presented a proposal with corrections and clarifications on the power definition, calibration, temperature correction and reference sound assessment (GRBP-79-33-Rev.1). Subject to deletion of the second occurrence of double paragraph 2.8., GRBP adopted the proposal and requested the secretariat to submit it for consideration and vote at the June 2024 sessions of WP.29 and AC.1 as draft Supplement 10 to the 03 series of amendments to UN Regulation No. 51.