The prescribed portion of oil, measured by the bath, is a tenth of a bath from each cor (a cor consists of ten baths or one homer, since ten baths are equivalent to a homer).
Jewish Publication Society of America Version (JPS1917) - Ezekiel 45:14 >and the set portion of oil, the bath of oil, shall be the tithe of the bath out of the cor, which is ten baths, even a homer; for ten baths are a homer;