Drinking Water Test Kit Dip the test strip into the desired water sample and take it out within 1-2 seconds. Hold the strip horizontally and gently tap or shake to remove excess moisture. Read the test results carefully in 60 seconds and compare the test area near the color chart on the bottle label.Sample requirements:1. Take 5-10mL of the sample, and take a cleaning part of the sample for testing after it is set for a while.2. The test is conducted at room temperature around 25 C.Testing method:1. Immerse the reaction area of the test strip in the solution to be tested for 1-2 seconds, then remove the test strip, and shake off the excess water on it.2. After 1 minute, compare the color of the reaction area of the test strip with the color chart to determine the test value of the solution to be tested.3. The colorimetric time should be controlled at about the 60s, and the reading will be affected if the time is too long or too short.Packing List: 1 Box of Test Strips Notes: 1. Due to the lighting effects and filming angles, there is a color difference in the product, please understand.2. Due to manual measurement, there is a tolerance in the product size.