Laboratory Beakers & Measuring Cylinders
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High-Form Laboratory Glassware: When Height Makes the Difference


You've probably noticed that some cylinders/beakers">beakers and cylinders are noticeably taller than their standard counterparts. That's not just aesthetic - the increased height-to-diameter ratio serves specific purposes in lab work, from reducing evaporation during extended procedures to improving measurement precision in volumetric analysis.

Our high-form glassware collection uses Type 1 Class A borosilicate glass with a thermal expansion coefficient of 3.3 x 10⁻⁶/K, meaning you can move these pieces from a -70°C freezer to a 500°C heating application without cracking. Compare that to regular soda-lime glass in basic Test tubes, which would shatter under similar thermal stress.

High-Form Beakers for Reduced Evaporation


Standard Beakers work fine for quick mixing, but when you're running a 4-hour reflux or need to minimize surface area exposure, high-form beakers become essential. The taller profile reduces the liquid's surface-to-volume ratio by approximately 30-40% compared to low-form designs.

  • Capacities from 50ml to 2000ml - taller walls mean less bench space per volume
  • Permanent white enamel graduations - won't fade after repeated autoclave cycles
  • Reinforced rims - the extra height requires structural support at the pouring edge
  • Compatible with standard Stoppers - seal the top during storage or controlled atmosphere work

Tall Measuring Cylinders for Precise Volumetric Work


Here's where geometry matters: a taller, narrower cylinder gives you better meniscus reading accuracy. When the same volume is spread over greater height, each millimeter of liquid level represents a smaller volume increment. Class A tolerance on a 100ml tall cylinder is ±0.5ml versus ±1.0ml on equivalent capacity low-form glassware.

The narrow diameter also means less parallax error when reading at eye level. Always use these with Personal Protective Equipment & Safety Gear since the tall profile makes them more prone to tipping - keep your safety glasses on when working at eye level with chemical solutions.

Specialized Applications in Analytical Chemistry


Tall-form glassware excels in titration setups where you need clear visibility of color changes throughout the solution depth, chromatography column preparation where slurry settling benefits from vertical space, and density gradient separations that require distinct layering. Check our Special offers section for bundled sets that include both high-form and standard pieces - most labs need both types depending on the procedure.

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