TFA Dostmann manufactures the 98.1128.10 PH Buffer solution, a buffer solution that comes in a 500 ml bottle. This testing fluid aids in maintaining stable pH levels for environmental testing purposes. TFA Dostmann's buffer solution is essential for accurate and reliable pH measurement calibration. https://elecena.pl/product/28894225/tfa-dostmann-98-1128-10-buffer-solution-500ml-for-calibration-ph-meters 2025-06-02 https://elecena.pl/product/28894225/tfa-dostmann-98-1128-10-buffer-solution-500ml-for-calibration-ph-meters 2026-05-15