The importance of defining the method in particle size analysis by sieving

K-REx Repository

Show simple item record Fahrenholz, Adam C. McKinney, Leland J. Wurth, C.E. Behnke, Keith C. 2010-11-22T17:45:23Z 2010-11-22T17:45:23Z 2010-11-22
dc.description.abstract The American Society of Agricultural and Biological Engineers (ASABE) publishes a standard for identifying particle size by sieving (ASABE S319.4). However, this standard includes a number of options that allow the test to be conducted differently, and different laboratories may analyze a single sample with different results. Options include the type of sieve shaker used, the use of sieve agitators, the use of a dispersion agent, and the sieving time. A small study was conducted to examine the effect of varying these methods on the calculated geometric mean diameter by weight (dgw) and geometric standard deviation by weight (sgw). Results indicated that large differences existed depending on the methods used, with dgw varying by as much as 100 microns, and sgw varying by as much as 0.42 simply by altering one option. When compounding the differences in methods, the variations can be even larger. These discrepancies demonstrate that, for particle size analysis by sieving to be used as an effective tool, the same methodology must be used to compare samples. Additionally, the data demonstrate that unless the methods in the current standard are better defined, dgw and sgw should be used only as relative values for comparison. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine Day, 2010 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 11-016-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1038 en_US
dc.subject Swine en_US
dc.subject Particle size en_US
dc.subject Sieving en_US
dc.subject Standard en_US
dc.title The importance of defining the method in particle size analysis by sieving en_US
dc.type Conference paper en_US 2010 en_US
dc.citation.epage 264 en_US
dc.citation.spage 261 en_US
dc.description.conference Swine Day, Manhattan, KS, November 18, 2010 en_US
dc.contributor.authoreid lelandm en_US
dc.contributor.authoreid kbfeed en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search K-REx

Advanced Search


My Account


Center for the

Advancement of Digital


118 Hale Library

Manhattan KS 66506

(785) 532-7444