40 CFR 91.405 - Recorded information.
(4) Number of hours of operation accumulated on the engine prior to beginning the warm-up portion of the test (to the nearest tenth hour).
(8) All pertinent instrument information such as tuning, gain, serial numbers, detector number, and calibration curve numbers. As long as this information is traceable, it may be summarized by system number or analyzer identification numbers.
(3) Barometric pressure; as an option, barometric pressure can be measured as a modal measurement instead of or in addition to a pre- and post-test measurement.
(4) Recorder chart or equivalent. Identify for each test segment zero traces for each range used, and span traces for each range used.
(1) Recorder chart or equivalent. Identify for each test mode the emission concentration traces and the associated analyzer range(s).
(6) For raw gas testing; fuel flow for each mode. Fuel flow measurement is not required for dilute testing but is allowed. 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 of the calibration temperature, no density correction is required.
(2) Recorder chart or equivalent. Identify the zero traces for each range used and the span traces for each range used.
Title 40 published on 2013-07-01
no entries appear in the Federal Register after this date.