TSG performs a wide variety of evaporative emission tests, from short isothermal SHED evaluations to 72 hour diurnal procedures.
We also offer the full complement of weight loss test methods for customers needing this protocol. All TSG SHED tests are
automated and carefully controlled to maintain conformance to EPA or CARB temperature profiles. TSG PZEV SHEDs use
magnetically coupled stirring fans.

Calibration activities are carried out monthly to ensure consistency and precision in measurements. SHED bake-outs are routinely
 performed to eliminate the possibility of HC hang-up and cross-contamination between tests. Additionally, components
undergoing accelerated aging at elevated temperatures are vented and segregated by their targeted specification
to ensure no cross-contamination among parts occurs.

TSG has performed the uncertainty analysis for its evaporative measurement systems and the results and data are available
to clients upon request.