Next: Introduction . ... We present the results of spectrophotometry of two Blue Compact Galaxies (BCG) known from earlier studies as very metal-poor objects. ... UM 382, according to our data, is significantly more metal-rich: its 12+log(O/H) = 7.76 0.07 in comparison to the cited earlier value 7.45. ... Thus the latter two galaxies should NOT be considered as extremely metal-poor BCGs. galaxies: abundances - galaxies: photometry - galaxies: individual (UM 133, UM 283, UM 382) . Introduction . ...