mayhem
New member
How to make your own calibration solution for PPM measurements.
When Using TDS meters or PPM meter's to check your liquids in your water cooling equipment or even to test that some manufactures are really producing what they say they are you all ways need to calibrate your TDS / PPM test meters. This is all so good to test Di water as well so that you know your getting what you paid for.
Now for testing Low PPM / TDS you need to calibrate your meter as close as possible to the target PPM you going to get.
E.g Some company's say there pre-mixed liquids or Ultra pure water is around 5 ppm or 0.5 ppm. So the ideal Test solution for your test meter would be around 60 PPM to calibrate to. But there is a problem! normally you can only purchase 240 PPM calibration solutions.
So here is how to make your very own Test solutions for calibrating you PPM / TDS readers so that you can accurate readings every time ....
Now most measurements for taking PPM and TDS readings is done using the "NaCl" method so to make a NaCl solution for testing we can simple use normal every day table salt.
What you do is take 1g of table salt and 1/2 Ltr (500ml) of Decent DI water or Ultra Pure H20.
This will make a Test solution that is a NaCl of 2000 PPM wich to many is still way to high so what you then can do is take 250ml of that solution and add another 250 ml of DI water or Ultra Pure H20. this will then make a solution of 1000 PPM and again if you 1/2 it again and keep doing that you'll end up with a test solution of around about 125 PPM wich is near perfect for testing you calibration meters.
When you testing lots of liquids daily this method of making your very own test solution saves you a fortune ....
How to make a PH test kit
If you after easily testing the PH balance of liquids there is a real simple method that will only cost you a Red cabbage, (btw this is a good way to stop build up of biomass and keep your cooling system in tip top shape)
Simply boil a red cabbage in water for about5 to 8 min then strain off the cabbage. Give your wife the cabbage to make some thing nice later on for tea ....
Once the red juice has cooled put it in a jar in the fridge.
To test any liquid you think could be suspect you can do a 2 to 1 ratio of 2 part cabbage liquid to 1 part of your liquid you would like to test.
PH range =
2 = RED (bad news - change out liquids)
4 = Purple (not good news - change out liquids)
6 = Violet (check you system)
8 = Blue (perfect leave your liquid alone)
10 = Blue/Green (check your system)
12 = Green / yellow (swap out you liquid some thing is not right)
When Using TDS meters or PPM meter's to check your liquids in your water cooling equipment or even to test that some manufactures are really producing what they say they are you all ways need to calibrate your TDS / PPM test meters. This is all so good to test Di water as well so that you know your getting what you paid for.
Now for testing Low PPM / TDS you need to calibrate your meter as close as possible to the target PPM you going to get.
E.g Some company's say there pre-mixed liquids or Ultra pure water is around 5 ppm or 0.5 ppm. So the ideal Test solution for your test meter would be around 60 PPM to calibrate to. But there is a problem! normally you can only purchase 240 PPM calibration solutions.
So here is how to make your very own Test solutions for calibrating you PPM / TDS readers so that you can accurate readings every time ....
Now most measurements for taking PPM and TDS readings is done using the "NaCl" method so to make a NaCl solution for testing we can simple use normal every day table salt.
What you do is take 1g of table salt and 1/2 Ltr (500ml) of Decent DI water or Ultra Pure H20.
This will make a Test solution that is a NaCl of 2000 PPM wich to many is still way to high so what you then can do is take 250ml of that solution and add another 250 ml of DI water or Ultra Pure H20. this will then make a solution of 1000 PPM and again if you 1/2 it again and keep doing that you'll end up with a test solution of around about 125 PPM wich is near perfect for testing you calibration meters.
When you testing lots of liquids daily this method of making your very own test solution saves you a fortune ....
How to make a PH test kit
If you after easily testing the PH balance of liquids there is a real simple method that will only cost you a Red cabbage, (btw this is a good way to stop build up of biomass and keep your cooling system in tip top shape)
Simply boil a red cabbage in water for about5 to 8 min then strain off the cabbage. Give your wife the cabbage to make some thing nice later on for tea ....
Once the red juice has cooled put it in a jar in the fridge.
To test any liquid you think could be suspect you can do a 2 to 1 ratio of 2 part cabbage liquid to 1 part of your liquid you would like to test.
PH range =
2 = RED (bad news - change out liquids)
4 = Purple (not good news - change out liquids)
6 = Violet (check you system)
8 = Blue (perfect leave your liquid alone)
10 = Blue/Green (check your system)
12 = Green / yellow (swap out you liquid some thing is not right)
