00000nam 2200000za 4500 9.862865 CaOODSP 20241227135033 cr ||||||||||| 181005s1978 oncado #ob f000 0 eng d 0-662-10135-9 CaOODSP eng eng fre n-cn--- En36-503/106E-PDF En36-503/106 Dolan, E. F. Evaluation of lyophilization method of disaggregating sand, silt and clay [electronic resource] / E.F. Dolan and M.A. Cashman. Ottawa : Fisheries and Environment Canada, Inland Waters Directorate, Water Resources Branch, 1978. v, 35 p. : ill., graphs, photographs Technical bulletin - Inland Waters Directorate ; no. 106 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "The Sediment Survey program includes the collection of "bed material" samples that are analyzed for particle size distribution. The present method of oven-drying requires vigorous grinding with a mortar and pestle to disaggregate the particles. The adaptation of the freeze dryer reduces this grinding time considerably. This report evaluates the freeze dryer or lyophilization method of disaggregating sands, silts and clays for particle size analysis and compares it with the oven-dried method presently used in the Sediment Laboratories of the Water Survey of Canada"--Abstract, p. v. Includes abstract in French. Lyophilization gccst Sediments gccst Analysis Cashman, M. A. Canada. Environment Canada. Canada. Fisheries and Environment Canada. Canada. Inland Waters Directorate. Canada. Water Resources Branch. Technical bulletin (Canada. Inland Waters Directorate) no. 106. (CaOODSP)9.861123 PDF 1.83 MB https://publications.gc.ca/collections/collection_2018/eccc/en36-503/En36-503-106-eng.pdf