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GRRF-78-12

Proposal for amendments to Regulation No. 54

Source(s)

ETRTO

Date

10 Sep 2014

Status

Superseded

Subject

UN R54 CV Tires

Meeting(s)

GRRF | Session 78 | 16-19 Sep 2014

Agenda item 7. (c) Regulation No. 54

Clarifications and corrections to document GRRF/2014/26 which proposes to alter the marking requirements of UN R54 to replace the PSI Index by the inflation pressure in kilopascals (“kPa”) and to add the possibility to put the “LT” marking as a prefix or suffix to align the requirements with current practice for C2 tyres with metric size designation.

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Related documents

Excerpts from session reports

GRRF | Session 78 | 16-19 Sep 2014

33. GRRF agreed to defer consideration of ECE/TRANS/WP.29/GRRF/2014/26 and GRRF-78-12 to its February 2015 session.

GRB | 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.

GRRF | Session 80 | 15-18 Sep 2015

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.