How does 14644-1 address nanoscale particles?

Исследователь смотрит на пробирку с жидкостью
Nanoscale particles are typically not of interest in the pharmaceutical and life sciences industries. For microelectronics manufacturers (e.g., semiconductor production), a particle counter should be used to monitor for concentration of these minute airborne particles at critical control points. Formerly defined as ultra-fine particles (ISO 14644-1:1999), nanoscale particles are now covered in a new Part 12.