UN R109 change reports — Retreaded tyres for commercial vehicles and their trailers
UN Regulation No. 109 (ECE R109) — Uniform provisions concerning the approval for the production of retreaded pneumatic tyres for commercial vehicles and their trailers.
01 series
- 01 series — Supplement 2
Paragraph 2.59. is deleted, and paragraph 2.4. now defines “Material supplier” in place of “Material manufacturer / material supplier”.
- 01 series — Supplement 1
Paragraph 2.56. now defines the central zone for “Principal grooves” as “the area on the tread which comprises of 75 per cent of the width of the tread measured symmetrically from the centre line”.
- 01 series — Base text
Snow test and traction tyre classification requirements are deleted, and paragraph 2.53. now refers to paragraph 6.1. of UN Regulation No. [XXX].
00 series
- 00 series — Supplement 12
Annex 10, paragraphs 1.3., 2., 2.1. and 2.2. now refer to ASTM standard F1805-20 in place of ASTM standard F1805-06.
- 00 series — Supplement 11
Paragraph 6.4.10. now also permits upgrading of the service description for a used casing, under conditions on the traceability of the carcasses.