Hi. I've been using the nutrafin nitrate test kit made by Hagen for a
couple of months. I have a problem in that I've lost the instruction
booklet and have forgotten exactly how to use the kit. Is there anyone
here who uses this test kit who could possibly post the instructions? TIA
This is the kit I am referring to:

http://www.aquariumproducts.com.au/category22_1.htm

It is the fourth one down on the page.