Volumetric Flasks
Volumetric flasks are essential for preparing accurate standard and stock solutions in analytical, quality control and research laboratories. With a defined calibration mark and tight manufacturing tolerances, they help ensure reproducible volumes when preparing reagents, buffers and standards for titrations, spectrophotometry or chromatography.
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FAQ
A volumetric flask is designed to prepare solutions at a defined volume with high accuracy. By filling to the calibration mark, users can prepare standard and stock solutions for titrations, spectrophotometric assays and chromatography using volumetric flasks from Fisherbrand, Brand, Hirschmann, Duran, Pyrex and Corning.
Class A volumetric flasks offer tighter tolerances and are recommended for analytical and regulated work, while Class B flasks are suitable for less critical applications. Brands such as BLAUBRAND from Brand, Fisherbrand and Hirschmann provide Class A options, often supplied with certificates of conformity to support method validation.
Volumetric flasks are commonly made from borosilicate glass or plastic such as PMP. Duran, Pyrex, Brand and Fisherbrand supply robust glass flasks for chemical resistance and temperature stability, while Corning offers plastic Class A flasks that provide shatter-resistance and safer handling in teaching and high-throughput labs.
Volumetric flasks should be rinsed immediately after use, washed with suitable laboratory detergent, thoroughly rinsed with deionised water and allowed to drain inverted. Avoid abrasive brushes that might scratch the glass. Follow manufacturer guidance from Fisherbrand, Brand or Hirschmann and avoid exposure to conditions that exceed specified temperature limits.
Calibration certificates document the accuracy and tolerances of Class A volumetric flasks. Products from Brand (BLAUBRAND), Duran and other suppliers often include individual certificates or batch documentation, which support compliance with GMP, GLP and ISO requirements, making it easier to demonstrate traceability during audits or method validation.
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