Research Projects

Project at a Glance

Project Status: complete

Title: Improvement of speciation profiles for aerosol coatings.

Principal Investigator / Author(s): Censullo, Albert C.

Contractor: California Polytechnic State University

Contract Number: 98-306


Research Program Area: Emissions Monitoring & Control

Topic Areas: Stationary Sources


Abstract:

The contractor prepared a plan designed to provide chemical speciation profiles for representative aerosol coating products. Products for testing were selected in accordance with program objectives of the Air Resources Board. Consideration was given to products which were representative of the California marketplace .Included were aerosol samples from waterborne, solvent borne, high solids, and lacquer technologies. Products containing exempt solvents, as well as products complying with Bay Area Air Quality Management District requirements for sale in the Bay Area were evaluated by testing. Supplemental information on chemical composition was obtained for all sampled coatings for comparison purposes. This information included Manufacturer's Safety and Data Sheets (MSDS), and Technical Data Sheets. For many samples, detailed formulation data were provided by the coatings manufacturers. Following a literature review of the status of sampling methods for aerosol products, potential sampling methods were evaluated, consistent with the development of accurate source profiles. Suitable sampling and analysis protocols were proposed and validated. Analyses of the coating materials were performed using high resolution capillary gas chromatography. Detection was by flame ionization detector, and mass selective detector, as deemed necessary for identification and quantitation of the coating components. The analytical methods identified and quantified coating total organic compounds (TOC's). Species profiles were obtained for approximately 90 coating samples, including 2 binary component samples, with identification of over 98% of the total organic compound species. These individual profiles were arranged into group profiles, distinguished by coating type and carrier.


 

For questions regarding research reports, contact: Heather Choi at (916) 322-3893

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