|08-01-2013 02:52 PM|
|Christof||That's what I thought. Thanks for confirming.|
|08-01-2013 02:21 PM|
As GH and KH test kits work on the principle of titration, you can double the volume of water to be tested, and just keep adding drops until you see a colour change.
The result is that each drop resolves to a finer degree (i.e. each drop is now 0.5 degrees hardness, rather than a single point). Doubling the volume again would result in a resolution of 0.25 degrees, etc.
|08-01-2013 12:11 PM|
Gh test issue
I'm using a Nutrafin Gh test which requires adding drops until a visible color change happens. With this test, the difference between drops is a little over 1 dH. If I double the amount of water from 5ml to 10ml and count drops until color change and then divide by two will I get more accurate results? Are there Gh test kits out there that measure more accurate than 1dH increments?