01501nam 2200457Ia 450 991071126990332120180711121003.0GOVPUB-C13-e9de1fb89ec743c9d6cab1e6f64c254b(CKB)5470000002481320(OCoLC)959983016(OCoLC)995470000002481320(EXLCZ)99547000000248132020161006d1955 ua 0engtxtrdacontentcrdamediacrrdacarrierPhotometric tests of 21 colored retroreflective samples /National Bureau of StandardsGaithersburg, MD :U.S. Dept. of Commerce, National Institute of Standards and Technology,1955.1 online resourceNBS report ;43431955.Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from PDF title page.Includes bibliographical references.PhotometryRetroreflectorsTestingPhotometryfastPhotometry.RetroreflectorsTesting.Photometry.United States.National Bureau of Standards.NBSNBSOCLCOOCLCQOCLCFBOOK9910711269903321Photometric tests of 21 colored retroreflective samples3270461UNINA