Code of Federal Regulations (Last Updated: July 5, 2024) |
Title 40 - Protection of Environment |
Chapter I - Environmental Protection Agency |
SubChapter C - Air Programs |
Part 89 - Control of Emissions from New and in-Use Nonroad Compression-Ignition Engines |
Subpart D - Emission Test Equipment Provisions |
§ 89.325-96 - Engine intake air temperature measurement.
Latest version.
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(a) Engine intake air temperature measurement must be made within 122 cm of the engine. The measurement location must be made either in the supply system or in the air stream entering the supply system.
(b) The temperature measurements shall be accurate to within
±2 °C.