pH test paper alkaline acid 5m 3 rolls

pH test paper alkaline acid 5m 3 rolls Description

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: 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. Can not indicate the Acid or solution when its density was lower than 0.01%. Keep dry for the rest paper. material: paper Photo Color Paper length: 5m/16ft Quantity: 3 Pc Package Contents: 3 x 5m pH Test Paper Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.