20 Pack pH Test Strips. 1600 Strips Universal pH 1-14 Test Paper, for Teaching, Chemical Experiments, Saliva, Urine, Water and Soil pH Monitoring

Specifications

About this product

PH Color Chart Intervals: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 pH < 7 is acidic, pH = 7 is neutral, pH > 7 is alkaline The color not changing when the liquid tested has a neutral pH. (E.g. Pure water) It is recommended to use the bleach in the laundry room and the vinegar in the kitchen to test the pH test paper. Instructions: 1. Take one strip from the pack and dip it into the solution you would like to measure. The color of your strip will change immediately. 2. Quickly match this color against the color chart on the inside of your pack to obtain the pH. Do not wait or let the strip dry! 3. The number next to the color on the chart is your pH. The pH scale ranges from 1 (very acidic) to 14 (very basic), 7 is neutral. Please note that solutions with a pH of ~5.5 will result in a yellow colored test strip that resembles the original color of the dry strip. Store in a cool, dry place away from sunlight. Common Uses and Examples of pH Acid Rain, pH = 4.3 – 5.6 Ammonia Based Glass Cleaner, pH = 10 Battery Acid, pH = 1 Beer, pH = 4.5 Bleach, pH = 12.6 Drain Cleaner, pH = 14 Drinking Water, pH = 6.5 - 8.5 Fruit Juice, pH = 2 - 5.5 Gastric Acid, pH = 1.5 - 3.5 Lemon Juice, pH = 2 Milk, pH = 6.8 Milk of Magnesia, pH = 10.5 Oven Cleaner, pH = 13 Pure Water, pH = 7 Saliva, pH = 6.2 – 7.4 Sea Water, pH = 8 Soft Drinks, pH = 2 - 4 Soap, pH = 7 - 10 Tea, pH = 4.9 – 7.2 Urine, pH = 4.6 – 8 Vinegar, pH = 3.1 Product expiration date: the product is valid for a long time (store in the dark and keep the product dry)