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 P—Emission Regulations for Otto-Cycle Heavy-Duty Engines, New Methanol-Fueled Natural Gas-Fueled, and Liquefied Petroleum Gas-Fueled Diesel-Cycle Heavy-Duty Engines, New Otto-Cycle Ligh > 86.1540—Idle exhaust sample analysis.

86.1540—Idle exhaust sample analysis.

(a) Record the CO idle concentrations in percent.
(b) If the CVS sampling system is used, the analysis procedures for dilute CO and CO2 specified in 40 CFR part 1065 apply. Follow the raw CO2 analysis procedure specified in 40 CFR part 1065, subpart F, for the raw CO2 analyzer.
(c) If the continuous raw exhaust sampling technique specified in 40 CFR part 1065 is used, the analysis procedures for CO specified in 40 CFR part 1065, subpart F, apply.

Code of Federal Regulations

[48 FR 52252, Nov. 16, 1983, as amended at 70 FR 40441, July 13, 2005. Redesignated at 73 FR 37194, June 30, 2008]