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This SAE Recommended Practice has been adopted by SAE to specify: a. A standard procedure for chassis dynamometer testing of heavy-duty road vehicles for the purpose of determining power delivered through the drive tires. b. A method of correcting observed power to reference test conditions. c. A method of analyzing the test data to determine if the test results are within expected power ranges. This document is applicable to DOT Class 6, 7, and 8 and on and on/off highway heavy-duty road vehicles equiped with compression ignition engines, manual or automatic transmissions, and single or tandem rear drive axles.

This standard test code has been adopted by SAE to specify: (a) A laboratory engine dynamometer test procedure. (b) A basis for engine power rating. (c) A method for correcting observed power to standard inlet air conditions. The pressure and temperature correction formulas contained herein should be used only within the specified range of conditions (see paragraph 8.4.1) and are not intended for altitude derating.

This standard test code has been adopted by SAE to specify: (a) A laboratory engine dynamometer test procedure. (b) A basis for engine power rating. (c) A method for correcting observed power to standard inlet air conditions. The pressure and temperature correction formulas contained herein should be used only within the specified range of conditions (see paragraph 8.4.1) and are not intended for altitude derating.

This standard has been adopted by SAE to specify: