1box 4.0-7.0 Range PH Test Paper 2-color Contrast Acidity Alkali Test Strip A#S

ITEM NAME:1box 4.0-7.0 Range PH Test Paper 2-color Contrast Acidity Alkali Test Strip A#S Product Description Description: Features: Easy to use, high measurement accuracy, easy to carry in boxes. Usage method: Test the acidity and alkalinity of the solution: Take a small piece of test paper on the surface dish or glass sheet, dip it in the middle of the test paper with a clean and dry glass rod, observe the stable color, compare with the standard colorimetric card, and judge the nature of the solution. Test specimens are prepared separately and immersed in the liquid directly; take out in 2 seconds, throw off excess water, and then compare the numerical pH value on the color card < 7 for acidity, pH = 7 for neutrality, pH > 7 for alkalinity, the greater the alkalinity is, the stronger the acidity is, the less the acidity is, the more attention should be paid to: in the test process, tear off a small piece of test first. Page, use glass stick, cotton swab or other sharp objects to dip a small amount of things to be tested, drop on the test page, see the color changes, and then compare the corresponding color classification on the colorimeter, you can know the PH value. Specifications: PH range: 4.0-7.0 Material: Paper Size: 88*66*10mm/3.46*2.6*0.39" Usage: Acidity and alkalinity test Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 Box X PH Test Paper.Usage: Acidity and alkalinity test. PH range: 4.0-7.0. Included: 1 Box X PH Test Paper. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.