Vender YANGMING 3*80 Strips New Alkaline Indicator Litmus 1-14 PH Testing Paper 240 Strips Test Kit Full Range Acid Water al mejor precio

<div><p>Brand new PH 1-14 color chart in each pack Weigh:app 3g The test strip color changes must be matched with the pH scale color chart within about 15 seconds Paper Size:app 50mm x 36mm (L x W) 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 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 Package includes: 3 x Set of 80pcs pH test paper</p></div>