[Code of Federal Regulations] [Title 40, Volume 31] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR1065.303] [Page 711-712] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 1065_ENGINE-TESTING PROCEDURES--Table of Contents Subpart D_Calibrations and Verifications Sec. 1065.303 Summary of required calibration and verifications. The following table summarizes the required and recommended calibrations and verifications described in this subpart and indicates when these have to be performed: Table 1 of Sec. 1065.303--Summary of Required Calibration and Verifications ------------------------------------------------------------------------ Type of calibration or verification Minimum frequency \a\ ------------------------------------------------------------------------ Sec. 1065.305: accuracy, Accuracy: Not required, but recommended repeatability and noise. for initial installation. Repeatability: Not required, but recommended for initial installation. Noise: Not required, but recommended for initial installation. Sec. 1065.307: linearity... Speed: Upon initial installation, within 370 days before testing and after major maintenance. Torque: Upon initial installation, within 370 days before testing and after major maintenance. Electrical power: Upon initial installation, within 370 days before testing and after major maintenance. Clean gas and diluted exhaust flows: Upon initial installation, within 370 days before testing and after major maintenance, unless flow is verified by propane check or by carbon or oxygen balance. Raw exhaust flow: Upon initial installation, within 185 days before testing and after major maintenance, unless flow is verified by propane check or by carbon or oxygen balance. Gas analyzers: Upon initial installation, within 35 days before testing and after major maintenance. PM balance: Upon initial installation, within 370 days before testing and after major maintenance. Stand-alone pressure and temperature: Upon initial installation, within 370 days before testing and after major maintenance. Sec. 1065.308: Continuous Upon initial installation, after system analyzer system response and reconfiguration, and after major recording. maintenance. Sec. 1065.309: Continuous Upon initial installation, after system analyzer uniform response. reconfiguration, and after major maintenance. Sec. 1065.310: torque...... Upon initial installation and after major maintenance. Sec. 1065.315: pressure, Upon initial installation and after major temperature, dewpoint. maintenance. Sec. 1065.320: fuel flow... Upon initial installation and after major maintenance. Sec. 1065.325: intake flow. Upon initial installation and after major maintenance. Sec. 1065.330: exhaust flow Upon initial installation and after major maintenance. Sec. 1065.340: diluted Upon initial installation and after major exhaust flow (CVS). maintenance. Sec. 1065.341: CVS and Upon initial installation, within 35 days batch sampler verification. before testing, and after major maintenance. Sec. 1065.345: vacuum leak. Before each laboratory test according to subpart F of this part and before each field test according to subpart J of this part. [[Page 712]] Sec. 1065.350: CO2 NDIR H2O Upon initial installation and after major interference. maintenance. Sec. 1065.355: CO NDIR CO2 Upon initial installation and after major and H2O interference. maintenance. Sec. 1065.360: FID Calibrate, optimize, and determine CH4 optimization, etc.. response: upon initial installation and after major maintenance. Verify CH4 response: upon initial installation, within 185 days before testing, and after major maintenance. Sec. 1065.362: raw exhaust Upon initial installation, after FID FID O2 interference. optimization according to Sec. 1065.360, and after major maintenance. Sec. 1065.365: nonmethane Upon initial installation, within 185 cutter penetration. days before testing, and after major maintenance. Sec. 1065.370: CLD CO2 and Upon initial installation and after major H2O quench. maintenance. Sec. 1065.372: NDUV HC and Upon initial installation and after major H2O interference. maintenance. Sec. 1065.376: chiller NO2 Upon initial installation and after major penetration. maintenance. Sec. 1065.378: NO2-to-NO Upon initial installation, within 35 days converter conversion. before testing, and after major maintenance. Sec. 1065.390: PM balance Independent verification: upon initial and weighing. installation, within 370 days before testing, and after major maintenance. Zero, span, and reference sample verifications: within 12 hours of weighing, and after major maintenance. Sec. 1065.395: Inertial PM Independent verification: upon initial balance and weighing. installation, within 370 days before testing, and after major maintenance. Other verifications: upon initial installation and after major maintenance. ------------------------------------------------------------------------ \a\ Perform calibrations and verifications more frequently, according to measurement system manufacturer instructions and good engineering judgment.