Division 4.9 Sodium acetate buffer (0,2 mol/l).

Weigh 16,4 gram sodium acetate (4.7) into a beaker glass. Dissolve in water and rinse into a volumetric flask of 1 000 ml. Dilute to the mark with water and adjust the pH to 4,7 with acetic acid (by use of a pH-meter (5.11)). This solution may be used for max 6 months with storage at 4 °C.