40 CFR Table 2
Requirements for Performance Tests
June 9, 2020
[As stated in §60.4244, you must comply with the following requirements for performance tests within 10 percent of 100 percent peak (or the highest achievable) load]
Open Table
| For each | Complying with the requirement to |
You must | Using | According to the following requirements |
|---|---|---|---|---|
| 1. Stationary SI internal combustion engine demonstrating compliance according to §60.4244 | a. limit the concentration of NOX in the stationary SI internal combustion engine exhaust | i. Select the sampling port location and the number/location of traverse points at the exhaust of the stationary internal combustion engine; | (1) Method 1 or 1A of 40 CFR part 60, appendix A-1, if measuring flow rate | (a) Alternatively, for NOX, O2, and moisture measurement, ducts ≤6 inches in diameter may be sampled at a single point located at the duct centroid and ducts >6 and ≤12 inches in diameter may be sampled at 3 traverse points located at 16.7, 50.0, and 83.3% of the measurement line (`3-point long line'). If the duct is >12 inches in diameter and the sampling port location meets the two and half-diameter criterion of Section 11.1.1 of Method 1 of 40 CFR part 60, Appendix A, the duct may be sampled at `3-point long line'; otherwise, conduct the stratification testing and select sampling points according to Section 8.1.2 of Method 7E of 40 CFR part 60, Appendix A. |
| ii. Determine the O2 concentration of the stationary internal combustion engine exhaust at the sampling port location; | (2) Method 3, 3A, or 3Bb of 40 CFR part 60, appendix A-2 or ASTM Method D6522-00 (Reapproved 2005)a d | (b) Measurements to determine O2 concentration must be made at the same time as the measurements for NOX concentration. | ||
| iii. If necessary, determine the exhaust flowrate of the stationary internal combustion engine exhaust; | (3) Method 2 or 2C of 40 CFR part 60, appendix A-1 or Method 19 of 40 CFR part 60, appendix A-7 | |||
| iv. If necessary, measure moisture content of the stationary internal combustion engine exhaust at the sampling port location; and | (4) Method 4 of 40 CFR part 60, appendix A-3, Method 320 of 40 CFR part 63, appendix Ae, or ASTM Method D6348-03d e | (c) Measurements to determine moisture must be made at the same time as the measurement for NOX concentration. | ||
| v. Measure NOX at the exhaust of the stationary internal combustion engine; if using a control device, the sampling site must be located at the outlet of the control device | (5) Method 7E of 40 CFR part 60, appendix A-4, ASTM Method D6522-00 (Reapproved 2005)a d, Method 320 of 40 CFR part 63, appendix Ae, or ASTM Method D6348-03d e | (d) Results of this test consist of the average of the three 1-hour or longer runs. | ||
| b. limit the concentration of CO in the stationary SI internal combustion engine exhaust | i. Select the sampling port location and the number/location of traverse points at the exhaust of the stationary internal combustion engine; | (1) Method 1 or 1A of 40 CFR part 60, appendix A-1, if measuring flow rate | (a) Alternatively, for CO, O2, and moisture measurement, ducts ≤6 inches in diameter may be sampled at a single point located at the duct centroid and ducts >6 and ≤12 inches in diameter may be sampled at 3 traverse points located at 16.7, 50.0, and 83.3% of the measurement line (`3-point long line'). If the duct is >12 inches in diameter and the sampling port location meets the two and half-diameter criterion of Section 11.1.1 of Method 1 of 40 CFR part 60, Appendix A, the duct may be sampled at `3-point long line'; otherwise, conduct the stratification testing and select sampling points according to Section 8.1.2 of Method 7E of 40 CFR part 60, Appendix A. | |
| ii. Determine the O2 concentration of the stationary internal combustion engine exhaust at the sampling port location; | (2) Method 3, 3A, or 3Bb of 40 CFR part 60, appendix A-2 or ASTM Method D6522-00 (Reapproved 2005)a d | (b) Measurements to determine O2 concentration must be made at the same time as the measurements for CO concentration. | ||
| iii. If necessary, determine the exhaust flowrate of the stationary internal combustion engine exhaust; | (3) Method 2 or 2C of 40 CFR 60, appendix A-1 or Method 19 of 40 CFR part 60, appendix A-7 | |||
| iv. If necessary, measure moisture content of the stationary internal combustion engine exhaust at the sampling port location; and | (4) Method 4 of 40 CFR part 60, appendix A-3, Method 320 of 40 CFR part 63, appendix Ae, or ASTM Method D6348-03d e | (c) Measurements to determine moisture must be made at the same time as the measurement for CO concentration. | ||
| v. Measure CO at the exhaust of the stationary internal combustion engine; if using a control device, the sampling site must be located at the outlet of the control device | (5) Method 10 of 40 CFR part 60, appendix A4, ASTM Method D6522-00 (Reapproved 2005)a d e, Method 320 of 40 CFR part 63, appendix Ae, or ASTM Method D6348-03d e | (d) Results of this test consist of the average of the three 1-hour or longer runs. | ||
| c. limit the concentration of VOC in the stationary SI internal combustion engine exhaust | i. Select the sampling port location and the number/location of traverse points at the exhaust of the stationary internal combustion engine; | (1) Method 1 or 1A of 40 CFR part 60, appendix A-1, if measuring flow rate | (a) Alternatively, for VOC, O2, and moisture measurement, ducts ≤6 inches in diameter may be sampled at a single point located at the duct centroid and ducts >6 and ≤12 inches in diameter may be sampled at 3 traverse points located at 16.7, 50.0, and 83.3% of the measurement line ('3-point long line'). If the duct is >12 inches in diameter and the sampling port location meets the two and half-diameter criterion of Section 11.1.1 of Method 1 of 40 CFR part 60, Appendix A, the duct may be sampled at '3-point long line'; otherwise, conduct the stratification testing and select sampling points according to Section 8.1.2 of Method 7E of 40 CFR part 60, Appendix A. | |
| ii. Determine the O2 concentration of the stationary internal combustion engine exhaust at the sampling port location; | (2) Method 3, 3A, or 3Bb of 40 CFR part 60, appendix A-2 or ASTM Method D6522-00 (Reapproved 2005)a d | (b) Measurements to determine O2 concentration must be made at the same time as the measurements for VOC concentration. | ||
| iii. If necessary, determine the exhaust flowrate of the stationary internal combustion engine exhaust; | (3) Method 2 or 2C of 40 CFR 60, appendix A-1 or Method 19 of 40 CFR part 60, appendix A-7 | |||
| iv. If necessary, measure moisture content of the stationary internal combustion engine exhaust at the sampling port location; and | (4) Method 4 of 40 CFR part 60, appendix A-3, Method 320 of 40 CFR part 63, appendix Ae, or ASTM Method D6348-03d e | (c) Measurements to determine moisture must be made at the same time as the measurement for VOC concentration. | ||
| v. Measure VOC at the exhaust of the stationary internal combustion engine; if using a control device, the sampling site must be located at the outlet of the control device | (5) Methods 25A and 18 of 40 CFR part 60, appendices A-6 and A-7, Method 25A with the use of a hydrocarbon cutter as described in 40 CFR 1065.265, Method 18 of 40 CFR part 60, appendix A-6c e, Method 320 of 40 CFR part 63, appendix Ae, or ASTM Method D6348-03d e | (d) Results of this test consist of the average of the three 1-hour or longer runs. |
aAlso, you may petition the Administrator for approval to use alternative methods for portable analyzer.
bYou may use ASME PTC 19.10-1981, Flue and Exhaust Gas Analyses, for measuring the O2 content of the exhaust gas as an alternative to EPA Method 3B. AMSE PTC 19.10-1981 incorporated by reference, see 40 CFR 60.17
cYou may use EPA Method 18 of 40 CFR part 60, appendix A-6, provided that you conduct an adequate pre-survey test prior to the emissions test, such as the one described in OTM 11 on EPA's Web site (http://www.epa.gov/ttn/emc/prelim/otm11.pdf).
dIncorporated by reference; see 40 CFR 60.17.
eYou must meet the requirements in §60.4245(d).
[81 FR 59809, Aug. 30, 2016]
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