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Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 89, Subpt. E, App. B Appendix B to Subpart E of Part 89—Tables

Current as of October 02, 2022 | Updated by FindLaw Staff

Table 1—8-Mode Test Cycle for Variable-Speed Engines

Test segment

Mode number

Engine speed 1

Observed torque 2 (percent of max. observed)

Minimum time in mode (minutes)

Weighting factors

1

1

Rated

100

5.0

0.15

1

2

Rated

75

5.0

0.15

1

3

Rated

50

5.0

0.15

1

4

Rated

10

5.0

0.10

2

5

Int

100

5.0

0.10

2

6

Int

75

5.0

0.10

2

7

Int

50

5.0

0.10

2

8

Idle

0

5.0

0.15

1 Engine speed (non-idle): ± 2 percent of point. Engine speed (idle): Within manufacturer's specifications. Idle speed is specified by the manufacturer.

2 Torque (non-idle): Throttle fully open for 100 percent points. Other non-idle points: ± 2 percent of engine maximum value. Torque (idle): Throttle fully closed. Load less than 5 percent of peak torque.

Table 2—5-Mode Test Cycle for Constant-Speed Engines

Mode number

Engine 1 Speed

Observed torque 2 (percent of max. observed)

Minimum time in mode (minutes)

Weighting factors

1

Rated

100

5.0

0.05

2

Rated

75

5.0

0.25

3

Rated

50

5.0

0.30

4

Rated

25

5.0

0.30

5

Rated

10

5.0

0.10

1 Engine speed: ±2 percent of point.

2 Torque: Throttle fully open for 100 percent point. Other points: ± 2 percent of engine maximum value.

Table 3—6-Mode Test Cycle for Engines Rated Under 19 kW

Mode number

Engine speed 1

Observed torque 2 (percent of max. observed)

Minimum time in mode (minutes)

Weighting factors

1

Rated

100

5.0

0.09

2

Rated

75

5.0

0.20

3

Rated

50

5.0

0.29

4

Rated

25

5.0

0.30

5

Rated

10

5.0

0.07

6

Idle

0

5.0

0.05

1 Engine speed (non-idle): ± 2 percent of point. Engine speed (idle): Within manufacturer's specifications. Idle speed is specified by the manufacturer.

2 Torque (non-idle): Throttle fully open for operation at 100 percent point. Other nonidle points: ± 2 percent of engine maximum value. Torque (idle): Throttle fully closed. Load less than 5 percent of peak torque.

Table 4—4-Mode Test Cycle for Propulsion Marine Diesel Engines

Mode number

Engine speed 1 (percent of max. observed)

Observed power 2 (percent of max. observed)

Minimum time in mode (minutes)

Weighting factors

1

100

100

5.0

0.20

2

91

75

5.0

0.50

3

80

50

5.0

0.15

4

63

25

5.0

0.15

1 Engine speed: ± 2 percent of point.

2 Power: Throttle fully open for operation at 100 percent point. Other points: ± 2 percent of engine maximum value.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 89, Subpt. E, App. B Appendix B to Subpart E of Part 89—Tables - last updated October 02, 2022 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-pt-40-89-subpt-e-app-b/

Read this complete Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 89, Subpt. E, App. B Appendix B to Subpart E of Part 89—Tables on Westlaw

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