Feature:1. Simple Operation: Remove a small test bar, touch the liquid under test, and compare the test results to a standard color on the map after a few seconds.2. PH Measuring Range: The PH level testing paper has a complete PH range, measuring PH from 0 to 14.3. PH Color Card Spacing: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, the PH level testing paper is easy to read.4. Convenient to Use: The PH testing paper has reel design, light and compact design, easy to use and wear.5. High Accuracy and Wide Application: Good quality, fast and accurate results in a few seconds. As long as it is aqueous solution can be measured.Specification:Item Type: PH Test PaperMaterial: PaperWeight: Approx. 19g/0.7ozUse Range: As long as it is aqueous solution, it can be measured.1. Test amniotic fluid, principle (the average person's vaginal secretion is acidic, and amniotic fluid is alkaline, acid alkalinity 7 or more) use sterilized cotton to pick vaginal secretions, apply it to the color block, then the color card, find the closest color , Draw a sour alkalin, if the color of no color or 6 or less is not amniotic fluid, 7 or more colors are amniotic fluid2. Test cosmetics, principle (because the skin of the skin is weakly acid, so the cosmetic acid is about 6 or so if there is no damage to the skin (the test strip is not discolored, the pH is 6, no change is a good cosmetics) On the color block, then the color card, find the closest color, to draw the alkalinity3. Meat alkalinity: Saliva is applied to the painted block, then the color card, find the closest color, to draw the alkalinity,4. Truck diadance: Urine is applied to the color block, then the color card, find the closest color, to derive an alkalinity.Package List:1 Roll x PH Test Paper1 x Box