<penstok> Bộ 80 tờ giấy kiểm tra độ pH tháng 1 - 14 chuyên dụng

Specifications: There is a strong correlation between the PH of the bodys internal environment and PH paper help you to maintain good healthy body by testing many usual everyday substances, including moisturized soap, lemon juice, milk, liquid detergent, moisturized soil, saliva, urine, sweat, etc. The scale reads from 1 to 14: 1 - 3 indicates a very acidic substance. 4 - 6 indicates an acidic substance. 7 indicates neutral. 8 - 11 indicates alkalinity. 12 - 14 indicates a very high level of alkalinity. PH 1-14 color chart in each pack. The test strip color changes must be matched with the PH scale color chart within about 15 seconds. Instruction: 1.Simply press the testing strip to the object or liquid you are testing. Half second later, take out the paper and using the color chart included, compare the color change of the paper to find out the acidity level of your testing subject. 2.Can not indicate the acid or alkali solution when its density was lower than 0.01%. 3.Keep dry for the rest paper. Type: PH Test Paper Quantity: 80 Strips Size (L x W): 45mm x 7mm/1.77" x 0.28" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x 80 Strips PH Test Paper #Acid #Indicator #Kit #Litmu #Litmustestingkit #Paper #Phtestingpaper #Stripes #Testingkit #Phindicator