difference in Taylor chlorine tests

[chem geek]

I used 14 drops and multiplied by 2-I don't know why. I'll get out the calculator and figure it out. Thanks for the help. Denise

So, 14 drops in a 25-ml sample size would be 14 * 0.2 = 2.8 ppm FC which is essentially the 3 ppm FC seen on the DPD test! At least things are consistent.