A. Saldivar, L. Burrelli
AMA Analytical, Inc., United States
pp. 571 - 573
Keywords: nanoparticles, coatings, stain, size distribution, hazard communication
Recent marketing of manufactured products for the construction trades has touted the use of engineered nanoparticles in there formulations. For this study, commercially available wood waterproofing stains were obtained that specifically identified “Nano Particle Technology” as a component of their products. Upon review of the Safety Data Sheets for these products however, the nanoparticles are not identified nor are they quantified for the users information. This study was conducted to characterize the nanoparticles present in the waterproofing products. Following laboratory sample preparation using filtration methods, electron microscopy analyses were employed to identify and size the nanoparticles encountered. Additionally, the weight percentages of the nanoparticle components were calculated. Results of the analyses were used to evaluate compliance or non-compliance with the OSHA Hazard Communication Standard. Findings showed that among the particulate present in the products, the concentration (by weight) of the nanoparticles were less than 1%; and, the particle size distribution ranged from 8.3 to 13.0% for particles at or less than 100 nanometers in diameter.