Yes, you can standardize a sample and then use this to confirm accuracy of the test! So with TA we're checking for acid concentration in grams per liter. So basically, if we make a solution, wherein we take a liter of water, and add 10 grams of tartaric acid to it, we would be at ten grams per liter TA! Conversely, you can use this same test to determine if your tartaric acid has degraded at all over the course of the year.