Scope: This paper-based test set helps you assess pH levels of many common everyday substances, including moisture-specific soap, lemon juice, milk, liquid detergent, moisturizing soil, saliva, sweat, etc. Scale reading: The scale ranges from 1 to 14. - 1-3 = very acidic - 4-6 = acidic - 7 = neutral - 8-11 = alkaline - 12-14 = very high alkalinity Reading time: Color changes must be matched to the scale color within about 15 seconds. Package contents: 80 strips of litmus paper, providing a sufficient supply for daily testing. Key benefits and features: - Quick, simple pH indication for a variety of everyday substances. - Clear 1-14 scale with defined ranges for easy interpretation. - Fast results in approximately 15 seconds per test. - Ample supply (80 strips) for regular use. Practical use scenarios: - Household testing: evaluate acidity/alkalinity of lemon juice, milk, soap, and liquid detergent to guide handling and safety decisions. - Personal care and health monitoring: assess saliva or sweat pH as part of routine observation or educational activities. - Education and experiments: perform hands-on science projects using common liquids to learn about pH behavior and colorimetric indicators.