00740nam a2200217Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 535.8 MIE Mielenz, K. D 8079 Design, construction and testing of a new high accuracy spectrophotometer K. D. Mielenz and K. L. Eckerle Washington U. S. Department of Commerce 1972 iii, 55p. National Bureau of Standards Technical Note; 729  Applied optics  8080  Optical instruments 7841  Spectrophotometer  8081 Astronomy and astrophysics thesaurus  1143 Eckerle, K. L 8082 BK 4586 4586 0 0 0 0 BAN BAN GEN 1974-12-27 0 535.8/ MIE 5117 2021-11-05 1974-12-27 BK