Deterioration Factor definition
Deterioration Factor means the calculated or assigned number that represents the certification engine’s emissions change over the durability period. It is multiplied by zero hour (new) engine test results to determine the engine family compliance level. The deterioration factor is determined as per the Test Procedures. See “Emission Durability Period” below.
Deterioration Factor or “DF” means the number, determined pursuant to 40
Deterioration Factor means the relationship between emissions at the end of useful life and emissions at the low-hour test point, expressed in one of the following ways, whichever is applicable: (A) For multiplicative deterioration factors, the ratio of emissions at the end of useful life to emissions at the low-hour test point; (B) For additive deterioration factors, the difference between emissions at the end of useful life and emissions at the low-hour test point.
More Definitions of Deterioration Factor
Deterioration Factor means the relationship between the emission level measured at the end of useful life or at the point where it is the highest during the useful life and the undeteriorated emission level measured at the point corresponding to a maximum of 6 437 km (4,000 miles) of operation in relation to a vehicle that has stabilized emissions and a maximum of 125 hours of operation in relation to an engine that has stabilized emissions, determined in accordance with
Deterioration Factor means the calculated or assigned number that represents the certification