PYREX® FLASKS, VOLUMETRIC, CLASS A
These PYREX® standard volumetric flasks conform to Class A capacity tolerances prescribed by ASTM. To facilitate transfer of crystals, salts, and powders, the open end has been expanded on the 25mL and 50mL sizes. The standard 18-410 GPI thread screw caps have a durable cone-shaped polyethylene liner.
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