00000nam 2200000zi 4500 9.953948 CaOODSP 20250814111339 m o d f cr bn||||||||| 250811e20221024oncda ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- T22-310/2022E-PDF Poudel, Anish, author. Ultrasonic rail flaw testing parameters in extreme cold temperature / prepared by Anish Poudel, Survesh Shrestha, Brian Lindeman, Glenn Washer, MxV Rail (formerly TTCI), a subsidiary of the Association of American Railroads. [Ottawa] : [Transport Canada], October 24, 2022. 1 online resource (vii, 34 pages) : charts, illustrations text txt rdacontent computer c rdamedia online resource cr rdacarrier "Proprietary Report P-22-018." "For Transport Canada." Includes bibliographical references (page 34). "This report summarizes MxV Rail (formerly TTCI) findings on the ultrasonic testing (UT) parameters with an emphasis on the impact of cold temperatures related to non-stop ultrasonic rail flaw testing. To assess and quantify the performance of the UT nondestructive evaluation (NDE) method in extreme cold temperatures, ultrasonic velocity and density in rail steel and different fluids (couplants) were first determined by conducting experiments in the laboratory. Changes in refraction angle (shear waves) were also measured during the experiments"--Executive Summary, page iii. Railroads Cold weather conditions. Ultrasonic testing. Chemins de fer Conditions par temps froid. Essais par ultrasons. Canada. Transport Canada, issuing body. MxV Rail, consultant. PDF 2.56 MB https://publications.gc.ca/collections/collection_2025/tc/T22-310-2022-eng.pdf