2% Formic Acid ships in a 2.5L bladder cube and is perfectly formulated to for a 1:1 mixture with TAF-NGB1 (Naphthol Green B Dye Solution) to achieve a 1% acidic mixture that is used in most industry testing. TAF-2FA can also be adjusted to be used with higher concentrates of Green B Dye for thicker samples.
![TAF-2FA](https://i0.wp.com/aderholdfirm.com/wp-content/uploads/2015/03/tAF-2fa_new.gif?resize=1024%2C515&ssl=1)