00000nam 2200000zi 4500 9.878560 CaOODSP 20241203113651 m o d f cr bn||||||||| 190827s1993 onca ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre En13-5/93-58E-PDF Engel, Peter, 1938- author. Uncertainty in the calibration of the DH-59 suspended sediment sampler / P. Engel. Burlington, Ontario : National Water Research Institute = Institut national de recherche sur les eaux, [1993] 1 online resource (4 unnumbered pages, 14 pages, 14 unnumbered pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 93-58 Cover title. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 13-14). "Tests were conducted in the towing tank at NWRI on the DH-59 sediment sampler with carefully selected nozzles. Statistical analysis of the test data were conducted. It has been shown that individual samplers can be calibrated with a high degree of repeatability but that the variability of calibrations from sampler to sampler was quite high at the lower velocities. It was further shown that the performance of the sampler was sensitive to changes in the velocity coefficient of the 3.2 mm nozzle. Similar variabilities in the velocity coefficient for the 4.8 mm and 6.4 mm nozzles did not affect the performance of the sampler. Similar tests on other types of samplers are proceeding"--Abstract. Includes summaries and abstracts in English and French. Canada. Environment Canada. National Water Research Institute (Canada) National Water Research Institute (Canada). Research and Applications Branch. NWRI contribution ; 93-58. (CaOODSP)9.844121 PDF 2.34 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-93-58-eng.pdf