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"Martin Brown" wrote in message ... In message , Franz Heymann writes My point was that I do not understand what process can determine the amount of arbitrary organic matter in a sample by simply shaking a suspension of the sample in a liquid and looking for a colour change. Probably something like: a fairly powerful oxidising agent, a catalyst and a suitable indicator. I am sincerely doubtful whether *all* organic compounds would respond identically to such a group of agents. It may be more specific than that - targeting the acidic peaty component that is guaranteed to rot and change volume. That would be a pH meter. That does not measure "total organic content", and would give wildly misleading results in limestone country. I still think it is a scam. Franz |
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