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Old 04-14-2007, 04:13 PM
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Default DKH Test?
ok so with my test kit i recently acquired, i read about how to test for KH, which I'm pretty sure is carbonate hardness. for the directions of using this, it says take 5ml of aquarium water and put drops of the Reagent in the test vial.

my problem:
the only thing it says is "Place drops of reagent into vial and count the number of drops it takes to turn the water from blue to yellow". now what is this number? i got 8, but 8 what? 8 mg/L? 8 on a 1-10 scale? 8 on your hardness level? im confused
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Old 04-14-2007, 07:00 PM
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Default Re: DKH Test?
What kind of kit is it? It usually gives you a conversion scale. Some titrate in mg/k others dKH.
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Old 04-14-2007, 07:25 PM
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Default Re: DKH Test?
it actually doesn't. it just says "the number of drops added until the color changes represents level of hardness (german hardness)"...word for word.

"measuring accuracy increases if the test is performed with 10ml of aquarium water (1 drop testing liquid = 1/2 degree dH)"

...and that...
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Old 04-15-2007, 11:48 AM
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Default Re: DKH Test?
It measures then dH which equals dKH. KH is the German measurement K = Kalk.
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Old 04-15-2007, 11:51 AM
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Default Re: DKH Test?
What brand is the test ?

Usually 1 drop is 1 dKH...

You wanna be in the 9-11 dKH range....
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