Confusion on measuring ppm in making CDS

You can do it that way, if you prefer, Serge - I prefer to add more water to drop the PPMs back down into a color I can more easily interpret since I don't know what "black gold" looks like. Or how much of it is at 600ppm, for example. I also cut my testing strips in half (long ways) so that I can do 2 tests with one strip.

Hi Pam.

As I understood from your discusión, the easiest way to low down the concentration is to dilute the CDS down till you can check the ppm with your sticks (max. 500 ppm - 3000 conc.)

is this right ?

thank you

Dilute your liquid by 10 and then times the reading you have,
So 5 ml solution added to 50ml (or would it be 45ml, can someone clarify this please)
and then times the result by 10 to have the correct ppms.

Is this correct?

I assume you mean you're diluting with distilled water and yes you've got it .

g2cforum.org/index.php/list/mms1/20140-7-day-fridge-mms?start=18#20220