Results of the Comparison Analyses of the Two Tank 40H Sludge Batch 2 Qualification Samples

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Two sets of six samples each of Sludge Batch 2 material were pulled from Tank 40H after completion of the transfer of the contents of Tank 8F to Tank 40H. At the request of Defense Waste Processing Facility (DWPF) personnel, these two sets of samples were analyzed to verify that there were no significant differences between the two sets due to differences in slurry pump operation time prior to pulling the samples. The results of those analyses indicate that the two samples are within 1.2 percent of each other for weight percent total solids in the slurry and weight percent ... continued below

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Swingle, R.F. February 4, 2002.

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Description

Two sets of six samples each of Sludge Batch 2 material were pulled from Tank 40H after completion of the transfer of the contents of Tank 8F to Tank 40H. At the request of Defense Waste Processing Facility (DWPF) personnel, these two sets of samples were analyzed to verify that there were no significant differences between the two sets due to differences in slurry pump operation time prior to pulling the samples. The results of those analyses indicate that the two samples are within 1.2 percent of each other for weight percent total solids in the slurry and weight percent dissolved solids in the supernate. Elemental analyses of the total slurry by Inductively Coupled Plasma-Mass Spectrometry (ICP-ES) gave differences of less than 2 percent. Analyses of selected fission product isotopes and actinides produced differences of generally less than 4 percent, though a couple of isotopes showed differences of up to 6 percent. With the exception of a few of the elemental analyses, whose differences were less than 1.5 percent, and Cs-137, whose concentration difference between the two samples was found to be about 3 percent, none of these differences was found to be statistically significant. This differences were compared to a criteria of less than 5 percent difference. The differences in the Na and Al concentrations in the supernate were found to be 6 - 8 wt percent. However, because of the analytical variability, these differences were not considered to be statistically significant. Based on these results, the samples are considered to be essentially the same.

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  • Other Information: PBD: 4 Feb 2002

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  • Report No.: WSRC-TR-2001-00565
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/799306 | External Link
  • Office of Scientific & Technical Information Report Number: 799306
  • Archival Resource Key: ark:/67531/metadc735187

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • February 4, 2002

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • May 5, 2016, 5:29 p.m.

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Swingle, R.F. Results of the Comparison Analyses of the Two Tank 40H Sludge Batch 2 Qualification Samples, report, February 4, 2002; South Carolina. (digital.library.unt.edu/ark:/67531/metadc735187/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.