This International Standard specifies requirements for, and gives guidance on, the characterization of airborne nanoparticles in inhalation exposure chambers for the purpose of inhalation toxicity studies in terms of particle mass, size distribution, number concentration and composition.
GSO ISO 10808:2013 history
2013GSO ISO 10808:2013 Nanotechnologies -- Characterization of nanoparticles in inhalation exposure chambers for inhalation toxicity testing