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Reply To: | TechNet E-Mail Forum. |
Date: | Thu, 4 Mar 2004 10:00:31 +0100 |
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Hi Technet,
To check the carbon filters of our AAT closed loop cleaning system we
test the water coming out of the filter with a so called "COD testkit",
COD=Chemical Oxigen Demand. The kit consists basically of a simple
plastic ampul with a few milligrams of some chemical powder. The idea is
to make a little hole in the ampul, fill it with water, wait a few
minutes so the dissolved chemical reacts with organics in the water, and
then check the color of the water. Pink=OK, Blue=filter is saturated and
needs replacement.
The test should be done a few times a week.
I just found out that we're paying a ridiculous 27 euro's for one such
ampul (about 36 US$). Does anyone know a more affordable way to check
if a carbon filter is still clean enough to catch organic contaminants
from the rinsing water ? Maybe you know which chemical this is ?
Best regards,
Daan Terstegge
Thales Communications
Unclassified mail
Personal Website: http://www.smtinfo.net
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