Many people recognize the value of ball-park estimates to corroborate and give
confidence in results gotten from other means. There are plenty of old-timers
here who will recognize the value of this, having worked with slide-rules and
calculations done the old fashioned way, before calculators. Even calculators
give wrong results if something is entered wrong or it is used incorrectly.
Mike seems to be overly optimistic in his valuation of this test to determine
quantitative levels but it is certainly an easy way to judge if you have CS -
and you may also be able to compare batches with each other. Hey, I can level
a picture to within 1/16 inch (at least) by eye. I wouldn't expect someone
without the same degree of spacial relationship ability to be able to do that,
but most people can tell vertical from horizontal, I hope.
Everyone has salt.
Dan
Close is for horseshoes, hand grenades, torque devices, and the salt test...
__________________________________________________
Re: CS>CS generator
From: Mike Monett (view other messages by this author)
Date: Mon, 6 Oct 2003 14:25:46
url: http://escribe.com/health/thesilverlist/m63112.html
CS>CS generator
From: Trem
Date: Mon, 6 Oct 2003 13:44:14
> Mike,
> I guess when you're broke anything seems expensive. The PWT is a
> precision device and is really not expensive at all.
> It is also NOT difficult to know if it is calibrated properly.
> Just put the meter into a small amount of calibration solution and
> if it doesn't read the proper number, just take the small
> screwdriver which is supplied with the meter and adjust it. That
> isn't rocket science. Little old grandmothers and teens do all the
> time.
> Come on..... using salt to tell PPM is just about the same as
> saying how high is up. It's too subjective.
> Trem
Hi Trem,
There are plenty of posts in the archives discussing problems with
the PWT and getting it calibrated. Some people have even discarded
theirs. How do you verify the calibration solution is still good?
After collecting data from you, Frank, and Ivan, I'm now convinced
it is a very valuable instrument, and I plan to get one soon. Then
I'll attack the calibration issue.
The salt test is very subjective, as you say. It's a quick test when
nothing else is available, and it can easily tell the ppm in about 5
ppm increments. Often, that's good enough to tell if something has
gone wrong with the process, or to see a change after adding H2O2 or
vinegar to the cs.
Or see if the Hanna has gone haywire:)
We need all the crosschecks we can get to confirm everything is
working properly. I'm now converted to the Hanna, thanks to your
information. But I'll continue using the salt test when it is
appropriate.
Best Regards,
Mike Monett
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