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UN R85: Proposal for a Supplement to address pressure measurement tolerances

Document GRPE-87-32/Rev.1

11 January 2023

87th GRPE session (10-13 Jan 2023)

Proposal to allow higher tolerance for pressure measurement under paragraphs 4.7 and 4.8 (+ aligned intake and exhaust) in order to avoid refusal of test due to the non-compliance of pressure accuracy and based on the low impact on the αd. Value or approach (linearity?) to be discussed.

Submitted by France

Status: Informal GR review

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Previous Documents, Discussions, and Outcomes

87th GRPE session (10-13 Jan 2023)

5. | UN Regulations Nos. 24, 85, 115, 133 and 143

59. The representative from France introduced GRPE-87-32-Rev.1. The representative from the EC requested additional time to scrutinize the proposal.

Relates to UN R85 |

Reference Number:	SIGTP-06-10/Rev.2
Submitted by:	EC
Meeting Session(s):	6th SIGTP session (19 Nov)
Document date:	22 Nov 24
Regarding:	UN R100 Electric Powertrain Vehicles

Reference Number:	SIGTP-06-14/Rev.2
Meeting Session(s):	6th SIGTP session (19 Nov)
Document date:	22 Nov 24
Regarding:	UN R100 Electric Powertrain Vehicles

Reference Number:	SIGTP-06-13/Rev.1
Meeting Session(s):	6th SIGTP session (19 Nov)
Document date:	22 Nov 24
Regarding:	UN R100 Electric Powertrain Vehicles

Reference Number:	DDADWS-02-05
Meeting Session(s):	2nd DDADWS session (19 Nov)
Document date:	22 Nov 24
Regarding:	ADDWS \| DDAWS

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