Published 1996-08-01 by SAE International in United States
This SAE Recommended Practice applies to nomenclature of
emissions and emissions reduction apparatus as applied to various
engines and vehicles. Modifying adjectives are omitted in some
cases for the sake of simplicity. However, it is considered good
practice to use such adjectives when they add to clarity and
Published 1995-08-01 by SAE International in United States
This SAE Recommended Practice applies to the reporting of
laboratory and test site data from the gaseous and evaporative
emission tests of in-use light duty trucks and passenger vehicles.
This document describes the reporting of procedures, fuel
specifications, and vehicle information necessary to compare the
results of in-use tests. Any variations in vehicles,
instrumentation, test equipment, or test program purpose should be
Published 1995-07-01 by SAE International in United States
This SAE Recommended Practice encompasses analytical procedures
for measuring nonregulated diesel exhaust emissions. Methods are
recommended for the measurement of aldehydes and carbonyl
compounds, sulfates and the characterization of diesel exhaust
particulates. Informational methods are presented for the
measurement of polycyclic aromatic hydrocarbons (PAH) in diesel
exhaust particulate samples. The procedures are based on current
proven chemical and engineering practices. However, it should be
noted that the procedures are subject to change to keep pace with
established experience and technology.
Published 1995-06-28 by SAE International in United States
This SAE Recommended Practice is intended for use as a test
procedure to determine the gaseous emission level of diesel
engines. Its purpose is to provide a map of an engine's
emissions characteristics which, through use of the proper weighing
factors, can be used as a measure of that engine's emission
levels under various applications. The emission results for
hydrocarbons, nitrogen oxides, carbon monoxide, and carbon dioxide
are expressed in units of grams per kilowatt hour (grams/brake
horsepower hour) and represent the mass rate of emissions per unit
of work accomplished.
Published 1995-06-01 by SAE International in United States
This SAE Recommended Practice applies to a production
dynamometer test procedure which can be used to measure the smoke
and gaseous emission characteristics of vehicular diesel engines.
This procedure describes the smoke emission test method, smoke test
cycle, gaseous emission test method, steady-state gaseous emission
test cycle, equipment, instrumentation, calibration, data analysis,
and correlation of results for comparison of production engine
emission performance to the requirements of current or past Federal
Published 1995-01-01 by SAE International in United States
The methods presented in this SAE Recommended Practice apply to the controlled testing of low-temperature charge, air-cooled, heavy-duty diesel engines. This document encompasses the following main sections: a.) Definitions of pertinent parameters; b.) Vehicle testing to determine typical values for these parameters; c.) Description of the setup and operation of the test cell system; and d.) Validation testing of the test cell system. While not covered in this document, computer modeling of the vehicle engine cooler system is recognized as a valid tool to determine cooler system performance and could be utilized to supplement the testing described. However, adequate in-vehicle testing should be performed to validate the model before it is used for the purposes outlined. The procedure makes references to test cycles that are prescribed by the United States Environmental Protection Agency (US EPA) and are contained in the Code of Federal Regulations. The existence of other international test cycles, which can be used for validation testing, is acknowledged.
Published 1994-06-01 by SAE International in United States
This SAE Recommended Practice describes a procedure for measuring the hydrocarbon emissions occurring during the refueling of passenger cars and light trucks. It can be used as a method for investigating the effects of temperatures, fuel characteristics, etc., on refueling emissions in the laboratory. It also can be used to determine the effectiveness of evaporative emissions control systems to control refueling emissions. For this latter use, standard temperatures, fuel volatility, and fuel quantities are specified.
Published 1993-04-27 by SAE International in United States
This SAE Information Report describes various dynamometer driving schedules currently in use in the world for measurement of exhaust emissions and fuel economy of passenger cars and light trucks. Issuance of this document will allow driving schedules to be deleted from individual test procedures, thus reducing the amount of repeated information in the SAE Handbook. This document includes: a.) Descriptions of driving schedules and b.) Second-by-second definition of speed versus time sequences.
Published 1992-06-24 by SAE International in United States
This SAE Information Report deals exclusively with the determination of sulfur compounds in automotive exhaust. Engine operating cycles and interpretation of results are not covered. Methods described in detail are those that have been or are being used by various laboratories. None are specifically recommended as superior to others. Since intensive measurement of automotive sulfur compounds is a relatively new activity, methods and practices have changed rapidly. Some methods are more experimental than others and are so noted in the test.
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