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| Document Title | UN R90: Proposal for amendments | ||||||||
| Reference Number | GRVA/2021/28 | ||||||||
| Date |
14 Jul 2021
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| Summary | Proposal allows discs with a different geometry to be included in the same group as long as the disc itself is subject to lower thermal and mechanical stresses than the reference disc. Aims at simplifying the definition of disk groups, reducing their number, while providing the same guarantees from a technical point of view. | ||||||||
| Source(s) | Italy | ||||||||
| Rulemaking Area(s) | UN R90 Replacement Brake Components | ||||||||
| Proposal Status | Superseded | ||||||||
| Meeting(s) | |||||||||
| Related Documents | |||||||||
| GRVA-11-35 | Revision of UN R90 | ||||||||
| WP.29/2022/17 | UN R90: Proposal for Supplement 8 to the 02 series of amendments (adopted) | ||||||||
| Downloads | |||||||||
| UNECE server | .pdf format | .docx format | |||||||
| Excerpts from session reports related to this document | |||||||||
| GRVA | Session 11 | 27 Sep-1 Oct 2021 |
100. The expert from Italy presented GRVA-11-35, introducing ECE/TRANS/WP.29/GRVA/2021/28 and ECE/TRANS/WP.29/GRVA/2021/29. He explained that Annex 15 was leading to a high number of groups to be tested and therefore was inducing an overproportioned test workload due to the grouping criteria. 101. GRVA adopted ECE/TRANS/WP.29/GRVA/2021/28 and requested the secretariat to submit it as draft supplement to UN Regulation No. 90 to WP.29 and AC.1 for consideration and vote at their March 2022 sessions. 102. The expert from the United Kingdom of Great Britain and Northern Ireland questioned the relevance of the amendments proposed in Table 1 in ECE/TRANS/WP.29/GRVA/2021/29. The expert from Italy volunteered to provide more details for review at the next session. 103. GRVA agreed to resume discussion on ECE/TRANS/WP.29/GRVA/2021/29 at its twelfth session. 100. The expert from Italy presented GRVA-11-35, introducing ECE/TRANS/WP.29/GRVA/2021/28 and ECE/TRANS/WP.29/GRVA/2021/29. He explained that Annex 15 was leading to a high number of groups to be tested and therefore was inducing an overproportioned test workload due to the grouping criteria. 101. GRVA adopted ECE/TRANS/WP.29/GRVA/2021/28 and requested the secretariat to submit it as draft supplement to UN Regulation No. 90 to WP.29 and AC.1 for consideration and vote at their March 2022 sessions. 102. The expert from the United Kingdom of Great Britain and Northern Ireland questioned the relevance of the amendments proposed in Table 1 in ECE/TRANS/WP.29/GRVA/2021/29. The expert from Italy volunteered to provide more details for review at the next session. 103. GRVA agreed to resume discussion on ECE/TRANS/WP.29/GRVA/2021/29 at its twelfth session. |
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