FAS/DPD Test question

[Medeco]

I suppose this goes for all testing?

When testing for the CC, after 1 drop, if the water is mostly clear with a slight pink hue, is that a Zero or a One? Im talking about a very slight pink color left.

Thanks!

 

[pwrstrk]

For testing CC add five drops of the reagent no matter when or if it turns pink. If it takes one drop to back to clear your fine. That's a CC of 0.5. If it takes 2 drops to go back to clear that's a CC of 1 and needs to be addressed. ?

 

[jblizzle]

All the test you add drops until the last one gives no color change. Sounds like 1 drop and it is not clear, a 2nd drop would make it clear, and the 3rd would do nothing ... making the CC = 2drops * 0.5 = 1ppm

 

[Medeco]

Thanks, I figured so, but wanted to be sure since I'm new to this.