Use general purpose burets to measure liquid solutions (stopcock located at bottom of tube) or gasses (stopcock located at top of tube) in analytical and quantitative analysis. Unlike pipettes, the volume from burets is changeable, making them suitable for titration experiments. Clear Nalgene™ acrylic burets are break-resistant and safer than glass but offer see-through visibility. Acrylic burets can be used with acids and bases, but not alcohols or organic solvents.