"Tera Werke Dr.rer.nat Ulich Baensch Gmgh, D 49304 Melle Germany"
By by adding and mixing 3 chemical solutions and one powder
to the water sample, 5 color indication measure
NO-3 in steps of 0, 12.5, 25, 50, and 100 (mg/liter)
I have heard that there is another test method
and the results are about a factor of 4 between
the 2 test methods.
When the natural habitat of rainbows quotes "Nitrate"
what is the usual Nitrate chemical species that is
referred to.
Ed Romana
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