BrandTech 4760161 Borosilicate Glass 50mL Titrette Bottletop Burette, with Titration and Recirculation Valve Capacity: 50ml Can offer precision of 3 decimal places below 20ml Important feature for users who need to work within the Class A error limits of glass burettes according to DIN EN ISO 385 or within volumetric tolerance per ASTM E288 All components move within the housing, reducing headroom requirements; the compact design and the light weight ensure good stability Suitable for most commonly used titrants up to 1mol/L in concentration, such as potassium permanganate, silver nitrate, EDTA, sodium hydroxide, alcoholic potassium hydroxide