CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 86—CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES > SUBPART D—Emission Regulations for New Gasoline-Fueled and Diesel-Fueled Heavy-Duty Engines; Gaseous Exhaust Test Procedures (§86.301-79 to §86.348-79) > 86.337-79—Information.

86.337-79—Information.

The following information, as applicable, shall be recorded for each test:
(a) Engine description and specification. A copy of the information specified in this paragraph must accompany each engine sent to the Administrator for compliance testing. The manufacturer need not record the information specified in this paragraph for each test if the information, with the exception of paragraphs (a) (3), (12), and (13), is included in the manufacturer's Part I.
(1) Engine-system combination.
(2) Engine identification numbers.
(3) Number of hours of operation accumulated on engine.
(4) Rated maximum horsepower and torque.
(5) Maximum horsepower and torque speeds.
(6) Engine displacement.
(7) Governed speed.
(8) Manufacturer's start-up and warm-up reference, (gasoline-fueled engines only).
(9) Curb-idle rpm.
(10) Dynamometer-idle rpm (automatic transmission code engines only).
(11) Maximum horsepower at 2000 rpm (gasoline-fueled engines only).
(12) Fuel consumption and maximum torque at 2000 rpm (gasoline-fueled engines only).
(13) Fuel consumption at maximum power and torque (Diesel engines only).
(14) Maximum air flow (Diesel engines only).
(15) Air inlet restriction (Diesel engines only).
(16) Exhaust pipe diameter(s) (Diesel engines only).
(17) Maximum exhaust system back pressure (Diesel engines only).
(18) Maximum exhaust system back pressure at 2000 rpm, if applicable (gasoline-fueled engines only).
(b) Test data; general. This information may be recorded at any time between 4 hours prior to the test and 4 hours after the test.
(1) Engine-system combination.
(2) Engine identification number.
(3) Instrument operator.
(4) Engine operator.
(5) Number of hours of operation accumulated on the engine prior to beginning the warm-up portion of the test.
(6) Fuel identification.
(7) Date of most recent analytical assembly calibration.
(8) All pertinent instrument information such as tuning, gain, serial numbers, detector number, calibration curve numbers, etc. As long as this information is traceable, it may be summarized by system number or analyzer identification numbers.
(c) Test data; pre-test. (1) Date and time of day.
(2) Test number.
(3) Ambient temperature in dynamometer testing room (gasoline-fueled engines only).
(4) Barometric pressure, pre-test for gasoline-fueled engines, pre-test segment for Diesel engines.
(5) Engine intake humidity, pre-test for gasoline-fueled engines, pre-test segment for Diesel engines with non-conditioned air supply systems.
(6) Maximum observed torque for intermediate and rated speeds (Diesel engines only).
(7) Maximum observed torque at 2000 rpm (gasoline-fueled engines only).
(8) Recorder chart or equivalent. Identify for each test (test segment for Diesel engines) zero traces for each range used, and span traces for each range used.
(d) Test data; modal. (1) Recorder chart or equivalent. Identify for each test mode the emission concentration traces and the associated analyzer range(s). The start and finish of each test.
(2) Observed engine torque.
(3) Observed engine rpm.
(4) Record engine torque and engine rpm continuously with a chart recorder or equivalent recording device.
(5) Intake air flow and depression for each mode (Diesel engines only).
(6) Engine intake air temperature for each mode (Diesel engines only).
(7) Fuel flow for each mode. If the fuel flow measurement is a volume measurement system, record the fuel temperature in the measurement system for fuel density corrections to the mass flow rate. If the fuel temperature is within 3 °C (5.4 °F) of the calibration temperature, no density correction is required.
(8) Engine intake humidity (only for Diesel engines with humidity conditioned air supply).
(e) Test data; post-test. (1) Recorder chart or equivalent. Identify the hang-up check.
(2) Recorder chart or equivalent. Identify the zero traces for each range used and the span traces for each range used.
(3) Ambient temperature in the dynamometer testing room (gasoline-fueled engines only).
(4) Total number of hours of operation accumulated on the engine.

Code of Federal Regulations

[42 FR 45154, Sept. 8, 1977, as amended at 46 FR 50495, Oct. 13, 1981; 47 FR 49807, Nov. 2, 1982]