Quote Originally Posted by grdnchik
TA= The test says to drop one drop at a time until it changes to red, however, I don't understand if it means totally red or until it change initially like the very first red swirl I see. Because I have been doing the latter one which means I have been registering it like this: 1x10= a TA of 10. But if it is the other way to continue adding drop until it changes completly from Green to Red then it took 20 drops. So 20 drops times 10 = TA of 200. So which one is it?

Regards,
Elsa
The proper way to do this test is add a drop and swirl the tube...repeat this until you finally add a drop that produces no further color change and then don't count that last drop. for example, you add 8 drops and you get a reddish color but it doesn't stay, you add a 9th drop and the color turns red and stays, you add a 10th drop and the red gets brighter, you add an 11th drop and their is no change to the color....your endpoint is 10 drops.
Hope this helps.