Description: Test range: ph 0-14 Test sample: urine, saliva, water quality Accuracy: 98% Scope of application: applicable to urine inspection, cosmetics, food, etc [Inspection Method]: 1. Immerse the reaction area of the test strip into the solution to be tested for 1-2 seconds, take out the test strip, scratch the edge of the test strip along the mouth wall of the solution container, and remove the excess solution above. 2. After 30 seconds, compare the reaction area of the test strip with the color of the color comparison card to determine the test value of the solution to be tested. 3. The colorimetric time should be controlled at about 30s. If the time is too long or too short, the reading will be affected. Parts List： 100pcs Water Test Strips.
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