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Description :

- Product: PH Range 1-14 Litmus Indicator Test Strips
- Pay close attention to water
- Pay close attention to fish
- Chemical inseparable from solution, the solution has a pH of points.
- This is a ready-made paper, use, tear off one, a drop of the solution.
- From its color changes we can know the pH of the solution to facilitate fast access.
- Paper use:

- 1. The nature of test solution: Take a small piece of paper on the surface of the dish or glass, with stained glass rod test solution or plastic head dropper point in the middle of test strips, observe the changes in color, with a contrasting color than the color card , to determine the nature of the solution.
- 2. Nature of test gases: the first paper moistened with distilled water, stick in one end of the glass rod with a glass rod to strip adjacent to the gas, observe the changes in color, to determine the nature of the gas.
- 3. Note:

- (1) The test strips can not be directly inserted into the solution.
- (2) Do not touch the paper tube mouth, bottle, duct vent.
- (3) when the pH of the solution was measured, the test strip is not pre-wetted with distilled water as the wetting test strips are equivalent diluted solution, which leads to inaccurate measurements. The correct way is to use a glass rod dipped in the test solution drip in the middle of test strips, test strips change color until then compare with the standard solution to determine the pH colorimetric card.
- (4) After removing the paper, should be in full bloom reclosable container strips, lest by some gas laboratory contamination.

*Note: Actual Measurement Dimension May Slight Different 1-2cm, your kind understanding will be much appreciated.

*Warm Tip :  Please be reminded that due lighting effects, monitor's brightness/contrast settings etc, there could be some slight differences in the colour tone of the website's photo and the actual item.