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Re: New test kits from Hagen
On Sat, 29 Jan 2000, Richard wrote:
> same result (110ppm). Is it possible to have Nitrates in tap water?
> Does anybody has experience with the Hagen test kits? How can I find
> out how accurate it is?
It's possible to have nitrate in tap water, but the level should never
exceed 44 mg/l (10 mg/l as nitrate-nitrogen) in a public water supply.
That's a public health standard recognized and used all over the world.
110 ppm is staggeringly high for a water supply. If you're reading the
kit correctly then it's almost certainly wrong.