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Keywords: RailwayTestCar 009.jpg Workmen loading 10 000 pound weight onto the NBS railroad track scale testing truck to make a combined load of 90 000 pounds in addition to the 10 000 pound truck National Institute of Standards and Technology National Institute of Standards and Technology PD-USGov-NIST PD-USGov National Bureau of Standards National Institute of Standards and Technology Rail transport safety Crash tests rail |