particles grain size

by **mohamed.shabana82** on Fri Nov 16, 2007 4:55 am

i want to know to know methods which determine the mean particle size , top cut ,........

by **Skip** on Fri Nov 16, 2007 12:04 pm

For particles that will not dissolve in water, there is the Sedigraph method---giving a good curve of particle size vs. % of total. Also the coulter Counter method. Both can measure down to below 1.0 micron size.
http://www.pss.aus.net/products/microme ... /5100.html for Sedigraph.
http://www.beckmancoulter.com/coulterco ... isizer.jsp for Coulter Counter.

Finally, the classic set of Screen Sieves ----ASTM Specifications for Sieves:
http://www.astm.org/cgi-bin/SoftCart.ex ... 1195246956

Do you need to check resins, or fillers? Hope these references help.