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Code of Federal Regulations Title 40. Protection of Environment § 40.1039.510 Which duty cycles do I use for transient testing?
Current as of January 02, 2025 | Updated by Findlaw Staff
(a) Measure emissions by testing the engine on a dynamometer with one of the following transient duty cycles to determine whether it meets the transient emission standards in § 1039.101(a):
(1) For variable-speed engines, use the transient duty cycle described in appendix VI of this part.
(2) [Reserved]
(b) The transient test sequence consists of an initial run through the transient duty cycle from a cold start, 20 minutes with no engine operation, then a final run through the same transient duty cycle. Calculate the official transient emission result from the following equation:
(c) [Reserved by 79 FR 23751]
Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.1039.510 Which duty cycles do I use for transient testing? - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-1039-510/
FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature before relying on it for your legal needs.
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