K 2006 test question

Aug 13, 2012
1
When the K 2006 FC test says "for 1 drop = .2 ppm, use 25 ml sample. For 1 drop = .5 ppm, use 10 ml sample", what does that mean. Are those alternative ways of testing, or should I be using one or the other?
 
Just use 10ml for the water sample, then each drop is 0.5ppm.

If you used 25ml of water every drop is 0.2ppm but there is no need to be that precise and it uses more reagent.

Edited as I had the numbers switched.

Posted from my Droid with Tapatalk ... sorry if my response is short ;)
 
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