Vender [hermoso y amor nuevo] 160/320 ph indicador tiras de prueba laborador 1-14 papel litmus probador de saliva orina al mejor precio

Condition: Brand New Paper Size:app 45mm x 7mm Weigh:app 3g The scale reads from 1 to 14: 1 - 3 indicates a very acidic substance 4 - 6 indicates an acidic substance 7 indicates neudival 8 - 11 indicates alkalinity 12 - 14 indicates a very high level of alkalinity PH 1-14 color chart in each pack The test sdivip color changes must be matched with the pH scale color chart within about 15 seconds Insdivuction: 1.Simply press the testing sdivip 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: 2/4 x Set of 80pcs pH test paper