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NO3 Reference Solutions
Tom posted a great idea for setting up a reference solution. I did this
tonight to verify my Nitrate test kit. However I had one twist to add to
this. I have reloaded my own shotgun shells since I was 15. I just
happened to have a powder scale for weighing out the amount of powder that
goes in the shell. Powder is weighed in grains. There are 7000 grains in
a lb. Your standard powder scale weighs down to 1/10th of a grain.
1 Grain = 64.8 mg.
1/10 Grain = 6.48 mg.
If you are interested in buying one, try Bass Pro or maybe Cabella's. I
got mine from Bass Pro in Springfield, MO.