In Depth Survey Report: Field Evaluation of Caterpillar Engineering ControlsDesigned to Reduce Occupational Exposures during Asphalt Paving Operations. Manufacturer: Caterpillar Paving Products. Paving Contractor: Barriere Construction. Paving Location: N

摘要

On September 9-13, 1996, researchers from the National Institute for OccupationalSafety and Health (NISOH) evaluated a first-generation engineering control designed to capture and remove fugitive asphalt emissions during asphalt paving. The asphalt paving engineering control study consisted of two major phases. During the primary phase, NIOSH researchers visited each participating manufacturer and evaluted their engineering control designs under managed environmental conditions. The indoor evaluation used tracer gas analysis techniques to quantify the control's exhaust flow rate and to determine the control's capture efficiency. Results from the indoor evaluations provided equipment manufacturers with the necessary information to maximize engineering control performance prior to the second phase of the study, performance evaluation of the engineering controls under 'real-life' paving conditions.