1. ECE/TRANS/WP.29/GRPE/2018/19e
Submitted by the expert from OICA
Informal document GRPE-77-20
77th GRPE, 6-8 June 2018
Agenda item 3(a)
ECE/TRANS/WP.29/GRPE/2018/19e
Clarification of justification

2. It has been noticed that the justification in working paper GRPE/2018/19 was not very clear. OICA would therefore propose to amend it as follows: 1. Annex 4 of Regulation No. 24 describes the opacity test over the full load curve of a compression ignition engine. For the determination of the engine power the same full load curve should be applied as in UN Regulation No. 85. However, the paragraphs mentioned in this paper are missing in UN Regulation No. 24. Therefore it is not possible to use the curve from a UN Regulation No. 85 approval. UN Regulation No. 24 should be adjusted to harmonize both Regulations.