SUBTITLE B: AIR POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 276 PROCEDURES TO BE FOLLOWED IN THE PERFORMANCE OF INSPECTIONS OF MOTOR VEHICLE EMISSIONS
SECTION 276.506 TRANSIENT LOADED MODE TEST SYSTEMS PERFORMANCE CRITERIA
Section 276.506 Transient Loaded Mode Test Systems Performance Criteria
a) Dynamometer Specifications
The dynamometer system shall meet the performance criteria specified in 40 CFR 85.2226(a) (Draft), incorporated by reference in Section 276.104(a) of this Part, with the following exceptions:
1) the inertia simulation capability need not be any higher than 5500 pounds;
2) the dead weight method is not required for the torque meter or load cell calibration; and
3) the vehicle cooling fan is required equipment for all transient loaded mode test systems.
b) Constant Volume Sampler Specifications
The constant volume sampler system shall meet the performance criteria specified in 40 CFR 85.2226(b) (Draft), incorporated by reference in Section 276.104(a) of this Part.
c) Analytical Instruments Specifications
The analytical instruments shall meet the performance criteria specified in 40 CFR 85.2226(c) (Draft), incorporated by reference in Section 276.104(a) of this Part, with one exception: the NOx measurement shall be determined by measuring nitrogen oxide and multiplying this value by 1.03. The measurement of nitrogen dioxide is not required.
(Source: Added at 22 Ill. Reg. 18867, effective September 28, 1998)