PAO-4 Particle Size Distribution on a Thermal Condensation Generator (5 Series)

Thermal Condensation Aerosol Generator using PAO-4 (4 cSt polyalphaolefin)
Operating at standard set up parameters of 408° C (765° F) 50 psig inert gas supply

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Number

Particle Size

Surface

Particle Size

Mass

Particle Size

Volume

Particle Size

median (nm) 204 275 309 309
mean (nm) 219 283 316 316
geo. mean (nm) 204 267 300 300
mode (nm) 202 300 334 334
geo. st. dev. 1.46 1.42 1.39 1.39

*The aerosol distribution listed above is characteristic of the ambient conditions and instrument settings at the time of testing.  Particle size distributions generated during field usage will change depending upon the ambient temperature, humidity and instrument settings in use.