40 CFR Subpart D
Emission Test Equipment Provisions
June 9, 2020
Appendix
A to Subpart D of Part 90
Tables
Appendix
B to Subpart D of Part 90
Figures
§
90.301
Applicability
§
90.302
Definitions
§
90.303
Symbols, acronyms, abbreviations
§
90.304
Test equipment overview
§
90.305
Dynamometer specifications and calibration accuracy
§
90.306
Dynamometer torque cell calibration
§
90.307
Engine cooling system
§
90.308
Lubricating oil and test fuels
§
90.309
Engine intake air temperature measurement
§
90.310
Engine intake air humidity measurement
§
90.328
Measurement equipment accuracy/calibration frequency table
§
90.311
Test conditions
§
90.312
Analytical gases
§
90.313
Analyzers required
§
90.314
Analyzer accuracy and specifications
§
90.315
Analyzer initial calibration
§
90.316
Hydrocarbon analyzer calibration
§
90.317
Carbon monoxide analyzer calibration
§
90.318
Oxides of nitrogen analyzer calibration
§
90.319
NOX converter check
§
90.329
Catalyst thermal stress test
§
90.320
Carbon dioxide analyzer calibration
§
90.321
NDIR analyzer calibration
§
90.322
Calibration of other equipment
§
90.323
Analyzer bench checks
§
90.324
Analyzer leakage check
§
90.325
Analyzer interference checks
§
90.326
Pre- and post-test analyzer calibration
§
90.327
Sampling system requirements
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