Propylene and Toluene Response Factors (Annex 5 Para 5.4.3.)
Methane Response Factor (Annex 5 Paragraph 5.4.3.)
Instrument calibration (Annex 5 Paragraph 5.1.)

During discussion in WLTP/DTP, 40 CFR Part 1066 was not finalized yet. Therefore, the values from text in 2011 were used in GTR15. However, the value in CFR were changed to 1.0% from 0.5%. This changes were made to harmonize with other regulations and also because CH-DY manufacturers could not comply with this value.

NO Consistency of Tyre RRC
3g/km Extension from Cal. ? or Test CO₂ value ?
How to develop f₀ and f₂ with fixed f₁ ?
Adjusted f_0,L and/or f_2,L are bigger than f_0,H and/or f_2,H ?
Huge Error when adjusting f_1,L to f_1,H

Presentation of outcomes from the Computational Fluid Dynamics method working group.

Computation Fluid Dynamics working group table of issues;

Meeting minutes, documents from the meeting are included in the document.

Meeting minutes, documents from the meeting are included in the document.

Table of regional options for inclusion in the UN Regulation transposition of GTR 15.

Proposal by Japan of items to be addressed during the development of the Type V (durability) testing under the draft WLTP UN Regulation.

Proposal to align UN R24 (Compression Ignition Engines – Emission of Visible Pollutants – Power Measurement) with UN R85 with regard to correction factors.

Proposal to clarify the fuel tank capacity restriction for mono-fuel gas vehicles. The definition of “mono-fuel gas vehicle” was slightly amended between the 06 and the 07 series of amendments to UN R83. This proposal aims to align the definitions across both series in order to avoid divergent interpretations.
Although the reference to a 15 liters tank has always been understood to refer to the nominal capacity of the tank, the use of the term “nominal capacity” in UN GTR No. 19 in several places other than the definition of “mono-fuel gas vehicle” can lead to other interpretations of the definition. The word “nominal” should therefore be inserted into the definition in both series of amendments.

Proposal to explicitly specify requirements related to the selection of driving modes for testing of Off-Vehicle Charging Hybrid Electric Vehicles (OVC-HEV) with a mode selection switch.