ASTM D3849 is the only recognized standard method for the digital measurement of carbon black particle size statistics via transmission electron microscopy (TEM). The method makes use of fractal geometry to derive particle size statistics for both aggregates and primary particles, using only the measured values of aggregate perimeter and area.
Technical Notebook: Improved framework for particle analysis based on ASTM D3849
Download Technical Notebook
Despite the sophistication of ASTM D3849, there has been disagreement in the industry regarding its utility and inter-laboratory reproducibility, especially with regard to smaller grades of carbon blacks. As a leader in third-party testing, Smithers recently developed a methodology based on ASTM D3849 that seeks to address these issues and improve identification of recovered carbon black obtained from mixed rubber samples.
SIGN UP FOR NEWSLETTERS
Letter
to the
Editor
Rubber News wants to hear from its readers. If you want to express your opinion on a story or issue, email your letter to Editor Bruce Meyer at [email protected].