10 PCS 80 Strips PH Test Paper Indicator Litmus Paper Water Pollution Kit

Product name: PH test paper

1. , Cosmetics are applied on the test strip, and then the closest color is found by comparing the color chart, and the pH is obtained. Test for amniotic fluid: The urine and vaginal discharge of most people are acidic, while the amniotic fluid is alkaline. (Take a vaginal secretion with a sterile cotton swab, apply it on a test paper, and compare the color chart to find the closest color, pH 7 The above indicates amniotic fluid; if it does not change color, it means that it is not amniotic fluid.). Measure the pH of the human body, the saliva sticks to the test paper, compare the color card, find the closest color, and get the pH of the human body. Test urine pH: Urine stained on the test paper, urine stained on the test paper, compare the color card, find the closest color, and get the pH of the human body. Check the acidity and alkalinity of the gas: first wet the test paper with distilled water, stick it to one end of the glass rod, and then send it to the mouth of the container containing the gas to be measured, observe the color change and judge the nature of the gas. (The test paper cannot touch the wall of the device). Used for pH testing of soils; Some plants require acidic or weakly acidic soils. It is necessary to measure the acidity of new soils or substrates that have been used for a long time!. Measurement method of soil pH (PH value): When measuring the pH value of the substrate, you can sample a little soil, put it in the bottom of the bowl, then add 4-6 drops of distilled water, and stir well. After it is still and clarified, immerse a part of the PH test paper in the clear solution, and then the test paper will change color. The pH value can be directly obtained by comparing the discolored test paper with the PH standard color chart