8.2 is accepted in North America, 7 is accepted in Europe. As
mentioned by others, there is not much of a difference. If France,
they titrate as if it were sulfuric also as I recall. Most other
countries titrate as if it were tartaric.
Regards,
Joe

(D. J. Gooding) wrote in message ...
I recently got a pH meter and want to use it also as a titration indicator for
TA measurements. I would have supposed that the desired endpoint pH would be
7.0 (neutral). However, I have found one reference that says to use 8.1 - 8.2
as the endpoint. Another reference says that it is conventional to use 8.2 in
the US and 7.0 in France. Does anyone know why? Which yields the TA that I
really want to use? Dennis