Test Results

UPDATE: Environment Canada's Official Test Report Released:

Click here to download the PDF version of EVCC's official test report from Environmental Canada.

Environment Canada's Environmental Technology Centre Emissions Research and Measurement Division.

Ottawa, Ontario. Evaluation of Exhaust Emissions from a Small Utility Engine with Environmental Control Corporation’s After-Treatment Systems (August 2001).

In this study the effectiveness of a catalyst/muffler to reduce the exhaust emissions from a small (4.0 kW) gasoline powered utility engine was evaluated. The objective of the program was to test and evaluate 5 catalytic mufflers, designed and built by Environmental Control Corporation. The results of the initial evaluation were used to select the two systems with the best results and to conduct further evaluation to determine the extent to which they reduced the regulated exhaust emissions without seriously affecting performance or fuel consumption. The engine was evaluated using the State of California Air Resources Board Exhaust Standards and Test Procedures for 1995 and Later, Utility and Lawn and Garden Equipment Engine, amended May 26, 1995.

The engine in the test program was a horizontal shaft utility engine built by Honda. The exhaust emissions quantified included carbon monoxide, nitrogen oxides, and total hydrocarbons. In these tests dilute exhaust measurements, similar to those outlined by SAE J10941 (Constant Velocity Sample System for Exhaust Emissions Measurement) were taken, in place of raw exhaust measurements as specified by SAE Recommended Practice J10882 for small utility engines. A summary of the results produced from this test are shown below:

Aubin, K (2001). Evaluation of Exhaust Emissions from a Small Utility Engine with Environmental Control Corporation's After-Treatment Systems. Environmental Technology Center, Emissions Research and Measurement Division. (Report #01-17). Ontario, Canada: Environment Canada.