1. LawStack
  2. Title 40 - Protection of Environment
  3. Chapter I - ENVIRONMENTAL PROTECTION AGENCY
  4. Subchapter C - AIR PROGRAMS
  5. Part 89 - CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD COMPRESSION-IGNITION ENGINES
  6. Subpart D - Emission Test Equipment Provisions
  7. 40 CFR § 89.327
40 CFR § 89.327
Charge cooling
June 9, 2020
CFR

For engines with an air-to-air intercooler (or any other low temperature charge air cooling device) between the turbocharger compressor and the intake manifold, follow SAE J1937. This procedure has been incorporated by reference. See §89.6. The temperature of the cooling medium and the temperature of the charge air shall be monitored and recorded.

[59 FR 31335, June 17, 1994. Redesignated at 63 FR 56995, Oct. 23, 1998]

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§ 89.326 Engine intake air humidity measurement
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§ 89.328 Inlet and exhaust restrictions

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