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Comparison of ISO 7641:1983 and ISO 7641:2012
Document R55-08-02
8 September 2014

The expert group on UN R55 submitted document GRRF/2014/14 to update the requirements for mechanical couplings, including a proposal to replace the references to IS0 7641:1983 with ISO 7641:2012. In response to issues raised within GRRF, the experts prepared a new proposal (document GRRF/2014/28). This document would supplement the proposal by providing additional information on the differences between the 1983 and 2012 versions of ISO 7641.

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Previous Documents, Discussions, and Outcomes
3. (b) | Automated Connections between Vehicles ( ACV)
4. | Regulation No. 55 (Mechanical couplings)

16. The Chair of the IWG on UN Regulation No. 55 introduced ECE/TRANS/WP.29/GRRF/2014/28 (based on ECE/TRANS/WP.29/GRRF/2014/14) and deleting references to the standard ISO 7641/1‑2012 as contained in the original proposal.

17. The chair of the IWG on UN Regulation No. 55 introduced GRRF-78-23 explaining the differences between standards ISO 7641:1983 and ISO 7641:2012. He reported on the meeting minutes (GRRF‑78‑25) and on the meetings status on Task Force Agricultural Couplings (TFAC) (GRRF‑78‑26). Finally he presented GRRF‑78-24 as a complete revision of UN Regulation No. 55. GRRF agreed to resume consideration of this proposal at its February 2015 session.

18. GRRF adopted ECE/TRANS/WP.29/GRRF/2014/28 and requested the secretariat to submit the proposal to WP.29 and AC.1 for consideration at their March 2015 sessions as draft Supplement 4 to the 01 series of amendments to UN Regulation No. 55.

4. | Regulation No. 55 (Mechanical couplings)

19. The expert from Germany introduced ECE/TRANS/WP.29/GRRF/2014/14 on behalf of the Chair of the informal working group on Regulation No. 55. GRRF requested clarifications on the changes to the standard ISO 7641/1-2012 when compared with the current regulated version. GRRF agreed to revisit this item at its next session.

12. (b) | Revision and extension of approvals
Related and Previous Documents
GRRF/2014/14
GRRF/2014/28
GRRF-78-23
Relates to UN R55 |