Aideepen PH Mét PH Thử Nghiệm Strips Chỉ Số Kiểm Tra Strips 1-14 Giấy Litmus Tester

Specification:
Product Model: 1-14 Broad Test Strips
Product material: paper
Product color: yellow
Product size: 7*4.5*0.5cm (single); single test paper: 5*1cm
Packaging size: 8*5*1cm (single)
Product net weight: 7g (single)
Product gross weight: 10g (single)

Note: One book has 80 strips, that is, it can be used about 80 times, and each book is equipped with a separate color card.

Instructions:
1. Tear off the test strip, take a drop of the solution to be tested and drop it on the test strip, the solution and the strip have a color reaction, and then compare with the color card to get the pH value. Note: Please do not put the strip directly on the test strip. Into the solution, but dip a drop with something.
2. This test paper is not suitable for very weak buffer solutions and acid-base solutions with a concentration of less than 0.01%.
3. This test paper needs to be stored in a dry place away from light.
First: use it to measure the pH of cosmetics, weak acid is the best! ! ! (The pH value is best between 5 and 6)
Second: You can use it when doing laundry! (As long as the water in the last wash is neutral! The pH value is at 7)

List:
Reminder: Due to the different shooting angles and monitors, there may be color difference, and everything is subject to the actual product; the size is measured manually, and there may be a little error.
Tear off a test strip, take a drop of liquid with a glass rod or dropper, drop it on the PH test strip, wait for a few seconds, observe the color change and compare it with the color card, and get a warm reminder of the result
①Do not soak in liquid, it will cause the reagent components to be scattered and affect the test
②Do not place it on tables and chairs, and contact other acid and alkali components, which will affect the test
What is the pH value? PH value<7=acidic, PH value<7 is acidic (the smaller the value, the more acidic), PH value=7 is neutral, PH value>7 is alkaline (the larger the value, the stronger the alkalinity)