Combur 10. Roche's well known Combur-Test brand of reagent strips for urinalysis. Maximum hygiene with minimum hassle. Tests for (b) (l) (u) (br) (n) (sg) (g) (p) (k) (ph) - Codes for tests: Blood (b), Leucocytes (l), Urbilinogen (u), Bilirubin (br), Nitrite (n), Specific Gravity (sg), Glucose (g), Protein (p), Ketones (k), PH (ph):