Home Page - Products - Lab Essentials Division - BRAND - BLAUBRAND 37250 Volumetric Flasks 200ml Class a DE-M Boro 3.3 PP/PE Stopper Narrow Neck 0.15ml Error Limit ISO Batch Certificate
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The BRAND BLAUBRAND 37250 200ml Class A Volumetric Flask represents the benchmark in precise volumetric liquid handling, designed by Germany's BRAND GMBH for demanding quantitative analytical workflows.
Constructed from premium Borosilicate Glass 3.3, this flask features an exceptionally low coefficient of thermal expansion and remarkable chemical resistance against strong acids, alkalis, and organic solvents. Each unit is calibrated "to contain" (TC, In) at a reference temperature of +20°C using automated precision equipment. With a 200ml nominal capacity, its error limit is strictly maintained within ±0.15 ml, bearing the official German DE-M conformity mark.
The flask features a narrow neck and precision-ground NS 14/23 taper joint to minimize evaporation during sample dissolution. It is paired with an ergonomic, blue polypropylene/polyethylene (PP/PE) square stopper. The anti-roll design prevents the stopper from rolling off lab benches, while the integrated dripping tip ensures smooth liquid recovery. Markings and ring lines are heat-fused into the glass using high-contrast blue enamel, resisting chemical washing and thermal sterilization.