Color chart for API test? - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 12-24-2010, 10:58 PM Thread Starter
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Question Color chart for API test?

I got this Freshwater master test kit with no instructions or color charts for free. It has test bottles for ammonia, nitrites, ph, chlorine, and hardness. At american aquarium products found instruction and color chart for the ammonia, nitrate, and ph.

Where can I get the instructions and color charts for chlorine and hardness?
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post #2 of 7 (permalink) Old 12-24-2010, 11:06 PM
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According to the API website, they do not manufacture a chlorine test kit...


As for the hardness test kit, you just add 5 mL of aquarium water, and count the number of drops of the reagent it takes to change the water from blue to yellow. The number of drops indicates your water hardness in German degrees.

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post #3 of 7 (permalink) Old 12-24-2010, 11:13 PM Thread Starter
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Well it has a bottle labled chlorine test solution. For the water hardness I have 2 bottles. One is sodium hydroxide and the other is calmagite solution.
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post #4 of 7 (permalink) Old 12-24-2010, 11:36 PM
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http://aquariumpharm.com/Products/Pr...x?ProductID=69

API makes 2 water hardness tests.
One is GH
The other is KH

To test either put 5 ml aquarium water in the test tube.
Add one reagent one drop at a time. Count the drops.
The KH will be blue at first, then will turn yellow when you have added enough drops.
Each drop that you added means one German degree of Carbonate hardness.

The GH will be yellow or orange at first, then turn green when you reach the right number of drops. Each drop that you added means one German degree of General hardness.

In the pamphlet included with these kits it says:

KH test causes burns, in case of contact with eyes or skin flush with water...
GH test contains triethanolamine Harmful by inhalation. Irritating to eyes, respiratory system and skin...
Neither bottles nor pamphlet mention the chemicals you list as the ingredients.

Maybe different company?
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post #5 of 7 (permalink) Old 12-25-2010, 12:11 AM Thread Starter
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No! Aquarium pharmaceutical, inc. on box. and on the bottles.
Found to test pool water for calcium sodium hydroxide is used. So is the bottle with sodium hydroxide for testing Gh?
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post #6 of 7 (permalink) Old 12-25-2010, 03:42 AM
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Quote:
Originally Posted by Hilde View Post
No! Aquarium pharmaceutical, inc. on box. and on the bottles.
Found to test pool water for calcium sodium hydroxide is used. So is the bottle with sodium hydroxide for testing Gh?
As you said yourself, this test kit does not test for GH, but tests for calcium!

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post #7 of 7 (permalink) Old 12-25-2010, 02:17 PM Thread Starter
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Thinking that some of the test bottles are not for testing aquarium water. For on the box it says complete kit for testing tap water and aquarium water.

Noticed another bottle for water hardness. This bottle is labeled EDTA color indicator. Found that the concentration of certain dissolved ions such as calcium and magnesium ions that make water hard is determined by a titration procedure using EDTA, ethalenediaminetetraacetic acid. Thus the the bottle labeled EDTA must be for testing the water hardness in aquarium.

Well found out from API that the test kit I got for is way of date. Thus one I will compare the test with it to test at pet store. I got some nice test tubes though and had lost most of the test tubes for the kit I have.

Last edited by Hilde; 01-03-2011 at 06:42 PM.
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