Exaxol Buffer Standard pH 7.40

Buffer Standard pH 7.40 by Exaxol, catalog numbers M0470-7.40-500, M0470-7.40-1, M0470-7.40-4, M0470-7.40-10, and M0470-7.40-20, is a pH 7.40 buffer standard for calibrating and checking pH meters and electrodes. Available in 500 mL, 1 L, 4 L, 10 L, and 20 L from MBP, a registered vendor to many research institutes across the USA.