My daughter is doing a science experiment and needs to test the acidity in organs
936198
If you are testing the liquids generated by the organ, it will read acid or alkaline of those liquids only. Meant to test saliva, urine, maybe prespiration. Just putting it up against something(like just laying it on a piece of liver) will not work, and if there is moisture from say being in the refrigerator(the organ)it will only read that moisture, not what the organ itself is.
237560
Thank you for responding. I have one question. Is apple cider vinegar a good acid choice?
787527
There should be a packet of powder that you add to distilled water. Then turn on PH meter, and dip into solution. Hit and hold CAL until it flashes. Then pick the number that is closest to the solution you will be testing (4.0-acidic 7.0alkaline 10.0) then hit ENTER. When it's calibrated it will display END. Repeat once a month to ensure PH meter reads correctly
216127
In order to calibrATE you do need the packets and thew ionized water. Unless you can get a lab to check it against their equipment
1735060
I believe there's a sticker with a picture on it. it is truly as simple as taking the bottle and putting it on top of the battery and pushing the bottle down over the holes. wait for the acid to drain into the battery then remove the bottle. Install the cap over the holes. Charge the battery at 2 Amps until done. the whole process shouldn't take more than an hour.
557180
Well it's only blue litmus paper, which will turn red in the presence of an acid, so no chart really necessary...maybe you are thinking of pH paper that changes several different colors?
166618
I tried it in liquids to see if it is showing the right numbers (vinegar vs water), but I am not sure if it is accurately shows the liquid PH.
706921
I am not an expert but my wife says they are low acid and you need to pressure can them.
453504
Ph levels should be between 6.8 and 7.0 lower ph levels are acidic and can cause kidney stones or over 7.0 to alkli
710425
I don't know about a specific acid, probably should visit your pool store for that, but, be careful with the tool as I followed the instructions and stained my pool surface. If I use it again I will not let the unit filled with acid sit any more than maybe 10-15 seconds at a time.
859146
yes,it test any water ph all u need is 1oz of water to be used before watering-very accurate.best for testing water ph from 5.0-8.0 in a test tube takes 10 seconds to do.
208846
There are several pieces Melissa, I would assess how old the kid is and also you may want to look for something else because you need so many other things to do a lot of the experiments.
544284
Yes, I have. It is off a considerable amount, given the nature of food safety. Food pH that is acidified or low-acid needs to be less than 4.6pH. However, I tested samples that I sent in for laboratory measuring and it's off by approx. .06. It doesn't sound like a lot, but it is. For example, I sent in two samples that I measured with this instrument at 4.42 and 4.31. The lab measured them at 4.48 and 4.37, respectively. The lower number I sent (4.31) them wasn't ideal for my purposes because of amount of food acid I had to add, but I sent it in as a cross-check for my new meter. They wouldn't accept 4.48 as low enough (I realize its lower than 4.6pH, but that seems to be another issue at work here). While I can probably work with the inaccuracy, as long as it remains consistent, I don't have much confidence in this meter. As a side note, I calibrated the meter fastidiously, several times between measurement with both 4.0 and 7.0 calibration fluid. My assessment at this point is to return the item, if possible.
1199170
Your best bet would be to contact the reagent supplier and try to acquire the MSDS for each chemical. If they are the same, they will work. This is a great test kit. It takes me about 5 minutes to run a detailed water test, eliminates the guess work that comes with using strips.
1936242
You might want to check whatever meter you're using. I have a digital pH meter that consistently measure the pH of this water over 10.
1465080
No. A refractometer only measures the concentration of anti-freeze in a coolant solution. To measure pH I recommend coolant test strips (visit www.cooltrak.com). Another way to test for coolant acidity is with a digital voltmeter. Set to 2 volt dc scale, black lead to battery negative terminal, red lead touching only liquid coolant, preferably in the radiator. If the radiator does not have a cap on it, measure in the de-gas bottle (overflow or recovery tank). Anything higher than 0.3 volts dc indicates acidic coolant and time for a flush and fill. Hope you found this helpful!
1370210
Make sure you have a working battery and the correct strips. Sometimes a code will show which may indicate you don't have enough blood for the sample. These are just some suggestions.