2. Visual Reading Technique:

Hold the strip up horizontally and compare the result shown on the strip with the color chart on the canister label closely and carefully. Take note of the result. For a semi-quantitative result, take down the results according to the time specified on the color chart. The pH and Protein can be read at any time within 60 seconds after dipping. For a qualitative result, the strip should be read 1-2 minute after dipping. If a positive result is obtained, repeat the test and compare with color chart at the time specified. Color changes beyond 2 minutes are of no diagnostic value.