Hi Terri,

"Ole Bob" will make many on the list angry but here are the facts.

Without some type of current measurement and record keeping people don't
know what they are making. One must make seferal btches and have them
tested so you can plot the data and have reasonalbe assurance that you
know what you  are making.

Several of the commercial people have automatic shut-off, but until you
have had it tested you cannot be sure as to what you are making. There
is one very good thing about CS and that is the ppm are not really that
important, whether it is 5, 10, or 15.
They all work so don't sweet it.

I am not a commercial vendor but I do sell to a few locals for $10.00
for 2 liters. The postage for that amount is about $8.50.
All of my CS is made by the HVAC ARTC method and the concnetration is 12
to 15 ppm by actual spectrophotometric measuremnt. I have one.

"Ole Bob:"

[email protected] wrote:

> Since l am not going to be making my own CS..but purchasing a cs
> generator..l
> am wondering how do all the ones making their own CS know what ppm
> they are
> getting consistently? if l buy a generator..can l know for sure l will
> be
> getting the ppms that l want? also..does anyone have a small amt of
> cs they
> could sell me until l am able to get the generator?  experienced
> CS'ers
> please give me your advice and wisdom..thankyou teri.