Abstract
Research on the corre l a t ion t est for chemical oxygen demand and the colors in liquid waste of oil palm plant has been conducted through three steps, they are the f irst lest on some liquid was t e oil palm plant, test on some variations of diluting sampel and lest on t he aplication of the results of the research. The test on COD and colors in liquid waste of oil palm plant show t he existence of correte t ion which is marked by the linear equa t ion which is oblained and the close correla t ion (R). The linear equation and correlation (R) are: Y = 0.19 X + 0,20 ; R = 0,99 for inlet sample and Y = 0,19 X + 0,14; R = 0,99 f or outte t sample The a plic a ton if the results of fhe research a l so shows the difference be t ween result of the test on COD and COD of the color test are very small. at the average of 4, 1%.
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