20. The expert from Hungary presented GRSG-108-15 proposing to clarify the requirements on the abrasion test machine. The experts from France and CLEPA preferred to wait until the forthcoming publication of the corresponding ISO standard. GRSG invited the secretariat to distribute GRSG-108-15 with an official symbol, for further consideration at the next GRSG session.

21. Referring to the discussion at the previous session of GRSG, the expert from Hungary introduced ECE/TRANS/WP.29/GRSG/2015/22 clarifying the requirements on the abrasion test machine. The experts from Germany informed GRSG about the status of work in ISO and announced that the corresponding ISO standard was in the process of being finalized and would hopefully be published by the end of the year. GRSG agreed to resume consideration of ECE/TRANS/WP.29/GRSG/2015/22 at its next session in April 2016.

14. The expert from Hungary introduced ECE/TRANS/WP.29/GRSG/2015/22 clarifying the technical requirements on the abrasion test machine. The expert from Germany informed GRSG about the status of work in ISO on abrasion test machines. He expected that the corresponding ISO standard would hopefully be published by the end of 2016. GRSG agreed to resume consideration of ECE/TRANS/WP.29/GRSG/2015/22 at its next session in October 2016, awaiting the publication of the ISO standard.

15. The expert from Hungary presented ECE/TRANS/WP.29/GRSG/2015/22 on clarifying the technical requirements of the abrasion test machine. The expert from Poland suggested replacing figure 4 in Annex 3 with a diagram including dimensions (GRSG-111-05). The expert from Germany informed GRSG that the corresponding ISO standard would be published soon. He offered to update the document to fully align the provisions of the Regulation with those of the ISO standard. GRSG welcomed that offer and agreed to defer the adoption of the amendments to UN Regulation No. 43 to its next session in April 2017 awaiting the submission of a revised official document by Germany.