Thanks splashpad and JoyfulNoise,
@Sjde
You can do everything you need with the TF100.
Thats a K1000 comparator from the TF100 with pH on the right and OTO Cl Br (yellow) test on the left. Matching the yellow is a challenge to be sure. Best just use that for the pH and a yes or no for the presence of any bromine.
Move on to the FAS-DPD test.
Using a 10ml or 25ml pool sample add one scoop of R-870, swirl. Add R-871 drop wise while swirling and counting drops till the pink turns clear. For bromine in a 10ml sample 1 drop = 1.25ppm(Total Br), or for a 25ml sample 1 drop = 0.5ppm(Total Br).
Chlorine Drop test - If you need to......1) measure Chlorine levels accurately or 2) higher than 5ppm or 3) test for Combined Chloramines…perform the Chlorine Drop Test. (FAS/DPD)
1. Rinse and fill the “Chlorine only” graduated cylinder to the 10mL mark
2. Add ONE heaping scoop of the R-870 powder and swirl to mix. (It may not all dissolve….don’t worry) The solution will turn pink. (unless you have no chlorine)
3. Next, carefully add R-871 solution one drop at a time. Count each drop and swirl until the solution turns back to clear. Multiply the number of drops you added times .5 (14 drops X .5 = 7ppm)
4. Record your results as FC (free chlorine)
5. To test for Combined Chloramines, add 5 drops of R-0003 to the solution and swirl. If it remains clear, you have no CC’s. If it returns back to pink, add R-0871 as before, counting and swirling between each drop. Once the solution returns clear, multiply the added drops times .5 again…..this will be your CC reading. Record it. The total of FC and CC should be recorded as TC (total chlorine)