pH Buffer solution 4,01 (25 °C) red, traceable to NIST

Plastic bottle, 90 ml For water analysis in laboratories or mobile Lovibond’s color-coded pH buffer solutions are suitable for calibrating pH electrodes with all types of pH meters, whether using automatic buffer recognition or manually adjustable pH values. Only standard reference materials traceable to NIST are used for production. The practical wide-neck round bottle can be used as a calibration vessel and can be simply refilled with our dosing bottles.