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Re: [APD] Preparing Control Sample to Determine Accuracy of K Test Kit

Charlie wrote:
> I have purchased a Lamotte Potassium test kit. I have also aquired an 0-0-3
> fertilizer. The container size is 237ml. As I undersand the analysis 3% of
> 237ml would be K. I would like to determine how much of this fertilizer
> would need to be added to a gallon of water to create a sample that should
> read 20ppm when tested. Anyone have experience with this type of
> calculation? Thanks, Chas.

It would be better if you knew what the ingredients were. I'm sure the 
percentages are rounded which won't help much here.

Jerry Baker
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