e-CFR data is current as of March 4, 2021
TITLE 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SUBCHAPTER U—AIR POLLUTION CONTROLS PART 1065—ENGINE-TESTING PROCEDURES
Subpart A—APPLICABILITY AND GENERAL PROVISIONS
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| Submitting information to EPA under this part. |
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| Overview of this part 1065 and its relationship to the standard-setting part. |
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| Approval of alternate procedures. |
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| Overview of procedures for laboratory and field testing. |
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| Units of measure and overview of calculations. |
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Subpart B—EQUIPMENT SPECIFICATIONS
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| Work inputs and outputs, accessory work, and operator demand. |
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| Fuel properties and fuel temperature and pressure. |
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| Engine cooling and lubrication. |
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| Exhaust gas recirculation. |
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| Dilution for gaseous and PM constituents. |
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| Gaseous and PM probes, transfer lines, and sampling system components. |
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| Batch sampling for gaseous and PM constituents. |
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| PM-stabilization and weighing environments for gravimetric analysis. |
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| PM-stabilization environment for in-situ analyzers. |
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Subpart C—MEASUREMENT INSTRUMENTS
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| Overview and general provisions. |
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| Data updating, recording, and control. |
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| Performance specifications for measurement instruments. |
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Measurement of Engine Parameters and Ambient Conditions
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| Work input and output sensors. |
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| Pressure transducers, temperature sensors, and dewpoint sensors. |
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Flow-Related Measurements
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| Dilution air and diluted exhaust flow meters. |
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| Sample flow meter for batch sampling. |
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| Diesel exhaust fluid flow rate. |
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CO and CO2 Measurements
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| Nondispersive infrared analyzer. |
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Hydrocarbon Measurements
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| Flame-ionization detector. |
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| Fourier transform infrared analyzer. |
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| Gas chromatograph with a flame ionization detector. |
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| Photoacoustic analyzer for ethanol and methanol. |
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NOX and N2O Measurements
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| Chemiluminescent detector. |
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| Nondispersive ultraviolet analyzer. |
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O2 Measurements
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| Paramagnetic and magnetopneumatic O2 detection analyzers. |
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Air-to-Fuel Ratio Measurements
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| Zirconia (ZrO2) analyzer. |
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PM Measurements
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| PM inertial balance for field-testing analysis. |
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Subpart D—CALIBRATIONS AND VERIFICATIONS
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| Overview and general provisions. |
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| Summary of required calibration and verifications. |
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| Verifications for accuracy, repeatability, and noise. |
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| Continuous gas analyzer system-response and updating-recording verification—for gas analyzers not continuously compensated for other gas species. |
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| Continuous gas analyzer system-response and updating-recording verification—for gas analyzers continuously compensated for other gas species. |
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Measurement of Engine Parameters and Ambient Conditions
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| Pressure, temperature, and dewpoint calibration. |
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Flow-Related Measurements
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| Exhaust-flow calibration. |
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| Diluted exhaust flow (CVS) calibration. |
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| CVS, PFD, and batch sampler verification (propane check). |
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| Sample dryer verification. |
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| Vacuum-side leak verification. |
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CO and CO2 Measurements
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| H2O interference verification for CO2 NDIR analyzers. |
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| H2O and CO2 interference verification for CO NDIR analyzers. |
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Hydrocarbon Measurements
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| FID optimization and verification. |
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| Non-stoichiometric raw exhaust FID O2 interference verification. |
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| Nonmethane cutter penetration fractions. |
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| Interference verification for FTIR analyzers. |
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| H2O, CO, and CO2 interference verification for photoacoustic alcohol analyzers. |
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NOX and N2O Measurements
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| CLD CO2 and H2O quench verification. |
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| NDUV analyzer HC and H2O interference verification. |
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| Interference verification for N2O analyzers. |
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| NO2-to-NO converter conversion verification. |
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PM Measurements
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| PM balance verifications and weighing process verification. |
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| Inertial PM balance verifications. |
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Subpart E—ENGINE SELECTION, PREPARATION, AND MAINTENANCE
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| Test engine preparation and maintenance. |
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| Maintenance limits for stabilized test engines. |
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| Durability demonstration. |
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Subpart F—PERFORMING AN EMISSION TEST OVER SPECIFIED DUTY CYCLES
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| Cycle-validation criteria for operation over specified duty cycles. |
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| Sample system decontamination and preconditioning. |
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| Pre-test verification procedures and pre-test data collection. |
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| Engine starting, restarting, and shutdown. |
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| Repeating of void modes or test intervals. |
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| Verification of proportional flow control for batch sampling. |
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| Verification of minimum dilution ratio for PM batch sampling. |
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| Gas analyzer range verification and drift verification. |
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| PM sampling media (e.g., filters) preconditioning and tare weighing. |
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| PM sample post-conditioning and total weighing. |
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Subpart G—CALCULATIONS AND DATA REQUIREMENTS
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| Local acceleration of gravity. |
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| Flow meter calibration calculations. |
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| PDP, SSV, and CFV molar flow rate calculations. |
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| Amount of water in an ideal gas. |
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| Chemical balances of fuel, intake air, and exhaust. |
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| Removed water correction. |
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| THC, NMHC, NMNEHC, CH4, and C2H6 determination. |
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| THCE and NMHCE determination. |
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| Dilution air background emission correction. |
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| NOX intake-air humidity and temperature corrections. |
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| CLD quench verification calculations. |
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| Adjusting emission levels to account for infrequently regenerating aftertreatment devices. |
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| Buoyancy correction for PM sample media. |
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Subpart H—ENGINE FLUIDS, TEST FUELS, ANALYTICAL GASES AND OTHER CALIBRATION STANDARDS
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| General requirements for test fuels. |
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| Residual and intermediate residual fuel. |
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| High-level ethanol-gasoline blends. |
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Subpart I—TESTING WITH OXYGENATED FUELS
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| Response factor determination. |
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Subpart J—FIELD TESTING AND PORTABLE EMISSION MEASUREMENT SYSTEMS
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| PEMS auxiliary equipment for field testing. |
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| PEMS calibrations and verifications. |
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| PEMS preparation for field testing. |
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| Engine starting, restarting, and shutdown. |
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| Emission test sequence for field testing. |
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Subpart K—DEFINITIONS AND OTHER REFERENCE INFORMATION
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| Symbols, abbreviations, acronyms, and units of measure. |
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| Incorporation by reference. |
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Subpart L—METHODS FOR UNREGULATED AND SPECIAL POLLUTANTS
Semi-Volatile Organic Compounds
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| General provisions for SVOC measurement. |
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| Sample media and sample system preparation; sample system assembly. |
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| Post-test sampler disassembly and sample extraction. |
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