Roche Cobas Chemstrip 9 Urine Test Strips 417109. Chemstrip 9 Urine Test Strip is a multi-parameter urine testing system that measures Blood, Protein, Leukocytes, Nitrite, pH, Glucose, Ketones, Bilirubin, and Urobilinogen. The test strips are for in vitro diagnostic use only. Results are obtained by visual comparison with the color scale printed on the side of the vial label. No calculations are necessary. 100/BX. Priced per box.