Does this paper test for different levels of ph or just acid vs. base?
1490279
Litmus paper only indicates whether the substance is an acid or base. If blue litmus paper turns red the substance is a base.
1671797
My strip were colored also. They do work. It is like the red ph liquid tester that only changes color when ph lower than 7.8 is present.
271801
It really doesn't matter what you are testing. the color doesn't really "absorb" it just tell you what number of level it is at. One thing you should know that the longest you stay with ph strip in there , paint may seem like it is coming off but really not. It is just melting because strip is probably soon to be old or stay there longer than supposed. This strip are high quality than china made based strips . If you are wondering wheter paint melting innterupting wit level? It really doesn't. I don't think it have anything in there.
1230173
According to Itoya's website, yes all pages are acid free. Obviously I have no way of testing it. I use this portfolio for screen prints however I recommend Itoya's other 18x24 portfolio, the Evolution line. It is lighter and the pages are indented further from the spine.
2171471
No it won't tell you how much of any chemicals to add to your pool, but it will give you info on what is low or high as far as ph, chlorine, alkalinity goes. The instruction pamplet that comes with the aqua check will indicate what a normal pool should read. You can add chemicals according to your pool volume. Hope this helps. I find the gage much easier to read than the color charts with the conventional strips.
503696
Yes it can. It states that it can test both urine and saliva to give you the most complete picture of your pH
730699
I am not sure I understand your question. I have tested numerous liquid samples for fluoride. It is my understanding this meter tests for the fluoride ion: not a chemical but an ion.
5096
hey. um i would imagine so because its acidic. but i would not know how much more..but what you can do is use the test strips to test the acidity and just add drops until you get the ideal ph. :) hope this helps
1570500
Not that I'm aware. Chlorine, acidity, ph... the usual suspects. Easy to use (not as easy as the strips I bought afterwards).
1189157
No it does not. It primarily tests Ph, Nitrites, Ammonia, and phosphate levels.
431266
As I understand it one of the colors goes from neutral to alkaline and the other goes from neutral to acidic so in essence going different directions on the PH scale.
1048509
since I had not done the acidic check, I do not know why it tested at 6.0. You might want to check with the company. Sorry.
1369335
No, it is designed for testing moisture in dirt. If you use it to test the moisture in wet clay balls, or pebbles, it will either read fully wet, or dry. The air around the medium for hydroponics is either dry, or full of water during the flow and ebb cycle. The pH reading requires very wet mud, or liquid for a reading, but the reading isn't as accurate as pH test strips.
755562
Yes I just did with a digital PH meter, tested in a baseline solution of 7.0 PH and the test sample read 9.7 PH ... close enough .. enough said ..
1630628
we have been very happy with our pH tester. It needs to be calibrated occasionally but for the most part stays in calibration fairly well. It's easy to recalibrate and easy to use. We are happy with the tester
904209
FROM HM DIGITAL: The PH-200 is an ideal, waterproof pH meter for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water as well as other liquids. It should NOT be used for testing distilled water or acids, as they may damage the sensor. It also should NOT be used to test solids, including soil. For more information, please visit www.tdsmeter.com/products/ph200.html
755560
A standard litmus kit cannot accurately test the pH of water due to the chemical traces on the strip and the reaction process..... Seriously? Those chemical traces and the reaction process are EXACTLY how pH is determined. This is like saying a speedometer can not be used to measure speed because it measures distance traveled over time...... /smh