Hi all,
As the topic says, I am using the API Copper Test kit and I am not quite sure how to read the result.
The instruction of the kit ask for the user to view the solution from the top looking down on the test tube.
While the instruction tells me to look down from the top with a white background underneath the testtube, it didn't specify if the testtube should be actually ON the white background or just be held above a white background.
I am worry because it gives a vastly different result.
For example, with my 45G QT water now, if it is placed ON the white paper background, it would seem about 0.5ppm of copper.
But if it is held above the white paper background, it would read just 0.25ppm.
That is one whole step in the product's result scale! Since it starts from 0ppm, then 0.25ppm, then 0.50ppm, and on and on.
Hopefully some of you have experience with this kit and can enlighten me!
Thanks
As the topic says, I am using the API Copper Test kit and I am not quite sure how to read the result.
The instruction of the kit ask for the user to view the solution from the top looking down on the test tube.
While the instruction tells me to look down from the top with a white background underneath the testtube, it didn't specify if the testtube should be actually ON the white background or just be held above a white background.
I am worry because it gives a vastly different result.
For example, with my 45G QT water now, if it is placed ON the white paper background, it would seem about 0.5ppm of copper.
But if it is held above the white paper background, it would read just 0.25ppm.
That is one whole step in the product's result scale! Since it starts from 0ppm, then 0.25ppm, then 0.50ppm, and on and on.
Hopefully some of you have experience with this kit and can enlighten me!
Thanks