Title 40, Part 1065 — Engine-testing Procedures

Applicability.

Submitting information to EPA under this part.

Overview of this part 1065 and its relationship to the standard-setting part.

Other procedures.

Approval of alternate procedures.

Overview of procedures for laboratory and field testing.

Units of measure and overview of calculations.

Recordkeeping.

Overview.

Work inputs and outputs, accessory work, and operator demand.

Fuel properties and fuel temperature and pressure.

Engine cooling and lubrication.

Engine intake air.

Exhaust gas recirculation.

Engine exhaust.

Dilution for gaseous and PM constituents.

Gaseous and PM probes, transfer lines, and sampling system components.

Continuous sampling.

Batch sampling for gaseous and PM constituents.

PM-stabilization and weighing environments for gravimetric analysis.

PM-stabilization environment for in-situ analyzers.

Overview and general provisions.

Data updating, recording, and control.

Performance specifications for measurement instruments.

Work input and output sensors.

Pressure transducers, temperature sensors, and dewpoint sensors.

Fuel flow meter.

Intake-air flow meter.

Raw exhaust flow meter.

Dilution air and diluted exhaust flow meters.

Sample flow meter for batch sampling.

Diesel exhaust fluid flow rate.

Gas divider.

Nondispersive infrared analyzer.

H measurement devices.

HO measurement devices.

Flame-ionization detector.

Nonmethane cutter.

Fourier transform infrared analyzer.

Gas chromatograph with a flame ionization detector.

Photoacoustic analyzer for ethanol and methanol.

Chemiluminescent NO analyzer.

Nondispersive ultraviolet NO analyzer.

Zirconium dioxide (ZrO) NO analyzer.

NO measurement devices.

NH measurement devices.

Paramagnetic and magnetopneumatic O detection analyzers.

Zirconium dioxide (ZrO) air-fuel ratio and O analyzer.

PM gravimetric balance.

PM inertial balance for field-testing analysis.

Correcting real-time PM measurement based on gravimetric PM filter measurement for field-testing analysis.

Overview and general provisions.

Summary of required calibration and verifications.

Verifications for accuracy, repeatability, and noise.

Linearity verification.

Continuous gas analyzer system-response and updating-recording verification—for gas analyzers not continuously compensated for other gas species.

Continuous gas analyzer system-response and updating-recording verification—for gas analyzers continuously compensated for other gas species.

Torque calibration.

Pressure, temperature, and dewpoint calibration.

Fuel-flow calibration.

Intake-flow calibration.

Exhaust-flow calibration.

Diluted exhaust flow (CVS) calibration.

CVS and PFD flow verification (propane check).

Sample dryer verification.

Vacuum-side leak verification.

HO interference verification for CO NDIR analyzers.

HO and CO interference verification for CO NDIR analyzers.

CO interference verification for HO FTIR analyzers.

FID optimization and verification.

Non-stoichiometric raw exhaust FID O interference verification.

Nonmethane cutter penetration fractions and NMC FID response factors.

Interference verification for FTIR analyzers.

HO, CO, and CO interference verification for photoacoustic alcohol analyzers.

CLD CO and HO quench verification.

NDUV analyzer HC and HO interference verification.

Interference verification for NO analyzers.

Chiller NO penetration.

Interference verification for NH analyzers.

NO-to-NO converter conversion verification.

PM balance verifications and weighing process verification.

Inertial PM balance verifications.

Test engine selection.

Test engine preparation and maintenance.

Maintenance limits for stabilized test engines.

Durability demonstration.

Overview.

Engine mapping.

Duty cycle generation.

Cycle-validation criteria for operation over specified duty cycles.

Sample system decontamination and preconditioning.

Engine preconditioning.

Pre-test verification procedures and pre-test data collection.

Engine starting, restarting, and shutdown.

Repeating of void modes or test intervals.

Emission test sequence.

Carbon balance error verification.

Verification of proportional flow control for batch sampling.

Verification of minimum dilution ratio for PM batch sampling.

Gas analyzer range verification and drift verification.

PM sampling media (e.g., filters) preconditioning and tare weighing.

PM sample post-conditioning and total weighing.

Overview.

Statistics.

Duty cycle generation.

Local acceleration of gravity.

Flow meter calibration calculations.

PDP, SSV, and CFV molar flow rate calculations.

Carbon balance error verification calculations.

Vacuum-decay leak rate.

Amount of water in an ideal gas.

Emission calculations.

Carbon-based chemical balances of fuel, DEF, intake air, and exhaust.

Hydrogen-based chemical balances of fuel, DEF, intake air, and exhaust.

Removed water correction.

Thc, Nmhc, Nmnehc, Ch, and Ch Determination.

THCE and NMHCE determination.

Dilution air background emission correction.

NO intake-air humidity and temperature corrections.

Drift correction.

CLD quench verification calculations.

Adjusting emission levels to account for infrequently regenerating aftertreatment devices.

Buoyancy correction for PM sample media.

Data requirements.

General requirements for test fuels.

Distillate diesel fuel.

Residual and intermediate residual fuel.

Gasoline.

Natural gas.

Liquefied petroleum gas.

High-level ethanol-gasoline blends.

Diesel exhaust fluid.

Lubricants.

Coolants.

Analytical gases.

Mass standards.

Applicability.

Sampling system.

Response factor determination.

Calculations.

Applicability.

General provisions.

PEMS auxiliary equipment for field testing.

PEMS instruments.

PEMS calibrations and verifications.

PEMS preparation for field testing.

Engine starting, restarting, and shutdown.

Emission test sequence for field testing.

Emission calculations.

Definitions.

Symbols, abbreviations, acronyms, and units of measure.

Incorporation by reference.

Applicability.

General provisions for SVOC measurement.

Sampling system design.

Sample media and sample system preparation; sample system assembly.

Post-test sampler disassembly and sample extraction.

Sample analysis.

General provisions related to vanadium sublimation temperatures in SCR catalysts.

Reactor design and setup.

Reactor aging cycle for determination of vanadium sublimation temperature.

Blank testing.

Vanadium sample dissolution and analysis in alumina capture beds.

General provisions for determining exhaust opacity.

Exhaust opacity measurement system.

Test procedure for determining percent opacity.

General provisions related to accelerated aging of compression-ignition aftertreatment for deterioration factor determination.

Application selection, data gathering, and analysis.

Determination of key aftertreatment system components.

Determination of thermal reactivity coefficient.

Aging cycle generation.

Facility requirements for engine-based aging stands.

Requirements for burner-based aging stands.

Execution of accelerated aging, cycle tracking, and cycle validation criteria.