Abstract
By employing the capabilities of a programmable calculator, we have developed a system of programs that calculates quantities often used in aerosol science. This system is suitable for use in the laboratory or in locations remote from normal laboratory environments and has the capability for executing complex calculations for data analysis from the keyboard in a manner similar to the functions supplied by a calculator manufacturer. Quantities calculated are particle real and aerodynamic diameter; slip correction factor; density, viscosity and mean free path of air at specified temperature and pressure; Reynolds number; particle stopping distance and velocity; as well as cascade impactor jet area and jet velocity. To provide flexibility for diverse data reduction needs, provisions are made to allow the user to write control programs that use the system programs to calculate desired quantities.