I don't know what kind of titration to call it, other than acid-base. But I can show you what the procedure we have looks like.
This is slightly abbreviated
1) Pipet 1mL sample of the bath into an erlenmeyer flask.
2) Add 9mL of distilled water
3) Add a few drops of phenolphthalein indicator
4) Titrate with 0.1N NaOh to a faint pink color that lasts for at least 15 sec
5) Titrate with 0.1N H2SO4 to remove pink color.
6) Add 40mL of saturated H3BO3 solution, 40mL of reagent alcohol, and 8 grams of KCl. Allow reaction to complete.
7) Add a few drops of Methyl Orange Indicator
Titrate with 0.1N H2SO4 tp faint pink endpoint.
9) Calculation: mL of 0.1N H2SO4 x normality of H2SO4 x 4 = oz/gal of fluoride.
In my experience with titration, one is supposed to titrate to a neutral endpoint. It seems to me that that is accomplished after step 4 or 5. I don't understand the purpose of steps 6-9. If you know, please share. Thanks!