Proposal for amendment to Regulation No. 54 and Regulation No. 117
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Proposal to modify the marking requirements to replace PSI with kilopascals (“kPa”). The intent is to harmonize the pressure indication and avoid confusion between UN Regulation No. 54 and US FMVSS 119 or FMVSS 139.

Reference Number: GRRF/2015/27
Origin: ETRTO
Date: 3 July 2015
Proposal Status: Superseded
Related Documents:
GRRF-78-12 | Proposal for amendments to Regulation No. 54
GRRF-80-10 | Proposal for amendments to document GRRF/2015/27 (Regulation No. 54)
GRRF/2014/26 | Proposal for amendment to Regulation No. 54
GRRF/2016/12 | Proposal for amendment to Regulation No. 54 and Regulation No. 117
Discussion(s):
Working Party on Noise | Session 62 | 1-3 Sep 2015

14. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2015/27 and ECE/TRANS/WP.29/GRRF/2015/32 which would be considered at the forthcoming session of the Working Party on Brakes and Running Gear (GRRF) (15-18 September 2015). GRB experts were invited to review these documents and to provide their colleagues in GRRF with comments, if any.

38. The expert from ETRTO also introduced ECE/TRANS/WP.29/GRRF/2015/27 as amended by GRRF-80-10 proposing to replace the “PSI index” by the pressure in “kPa”. The proposal received several comments e.g. on paragraph 3.1.10. and the use of “may” or “shall”. GRRF agreed to resume consideration of this proposal at its next session on the basis of a revised proposal that the expert from ETRTO volunteered to prepare.

Working Party on Brakes and Running Gear | Session 80 | 15-18 Sep 2015

14. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2015/27 and ECE/TRANS/WP.29/GRRF/2015/32 which would be considered at the forthcoming session of the Working Party on Brakes and Running Gear (GRRF) (15-18 September 2015). GRB experts were invited to review these documents and to provide their colleagues in GRRF with comments, if any.

38. The expert from ETRTO also introduced ECE/TRANS/WP.29/GRRF/2015/27 as amended by GRRF-80-10 proposing to replace the “PSI index” by the pressure in “kPa”. The proposal received several comments e.g. on paragraph 3.1.10. and the use of “may” or “shall”. GRRF agreed to resume consideration of this proposal at its next session on the basis of a revised proposal that the expert from ETRTO volunteered to prepare.