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Reading Test Results
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Fraynes1
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Joined: 15 Feb 2005
Location: Thunder Bay, Ontario Canada

PostPosted: 2005.05.15(Sun)7:51    Post subject: Reading Test Results Reply with quote

I have a stupid question about how to read tests. Right now I use all aquarium pharmaceutical tests.

My question is, lets say, when I test for Nitrates, I follow instructions and after waiting check it against the color chart. If I hold the vial right against the paper it will be closer in color to 20ppm but if I hold it about 1/4" from the paper with light behind it will be closer to 10ppm. Which is correct?

I usually go by holding it 1/4" away from the chart paper.

Newbie question but want to get it right!

Thanks
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Josh Hansen
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Joined: 20 Feb 2005
Location: Dayboro, Queensland, Australia

PostPosted: 2005.05.16(Mon)3:28    Post subject: Test reading Reply with quote

Try looking at the test tube from the top facing downwards to the test chart.

from Josh
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