[compost_tea] Re: barometric pressure and compost tea Oxygen levels

From: tomjasz <tom_at_livesoil.com>
Date: Wed, 08 Oct 2003 21:28:28 -0000

http://www.livesoil.com/do.htm

Dissolved Oxygen Percent Saturation Correction

--- In compost_tea_at_yahoogroups.com, "dloring3" <dloring3_at_c...> wrote:
> To the question of how barometric pressure changes might affect
> Oxygen reading in tea.
>
> A large jump in barometric pressure from 29 to 30 would have the
same
> affect as changing altitude 1,000 feet.
>
> see http://www.nfinity.com/~exile/howhigh.htm
>
> The chart with my dissolved Oxygen meter is in meters but 300
meters
> is about 1000 feet and the change at room temperature would only be
> 0.3ppm. This is not going to account for the differences in Kirk's
> readings, it must be something else.
>
> Dave Sotillo 50


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Received on Thu Oct 09 2003 - 21:34:47 EDT

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