Browse Prior Art Database

Particle Size Calibration

IP.com Disclosure Number: IPCOM000045604D
Original Publication Date: 1983-Apr-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Charnetsky, RH: AUTHOR [+3]

Abstract

When trying to determine the degree of sedimentation or particle contamination on surfaces, it is often desirable to use a particle of known size to calibrate the instrument used for examinind the surface.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Particle Size Calibration

When trying to determine the degree of sedimentation or particle contamination on surfaces, it is often desirable to use a particle of known size to calibrate the instrument used for examinind the surface.

One technique for small particles is to use lycopodium pollen dispersed in a chlorofluorocarbon spray system. These 28-micron grains can be mixed with filtered ethyl alcohol placed in the spray unit and then uniformly deposited over the surface of interest. The alcohol readily evaporates, leaving the pollen.

1