Beaker, Tall form as per IS 2619 or ISO 3819 or DIN 12331

Quick Answer: A tall form beaker is a glass beaker that is taller and narrower than a low form beaker of the same capacity. The extra depth suits pH and conductivity measurements, magnetic stirring, titrations with an immersed electrode, and boiling liquids that tend to spatter.

What the Tall Form Is Designed For

The tall form beaker, sometimes called the Berzelius form, holds its volume as a narrower, deeper column of liquid. That depth is the reason to buy one. A pH or conductivity electrode needs its bulb and junction covered, and a stirrer bar needs room to turn beneath it; in a tall beaker both fit in a modest sample volume, and the burette tip can still sit above the liquid during a potentiometric titration.

Height also helps when heating. Spatter from a boiling solution hits the walls rather than jumping out, and vapour condenses on the cooler upper walls and drains back. The trade-off is stability: the vessel has a higher centre of gravity than the low form equivalent, so it tips more easily on a stirrer plate or when knocked.

Standard References and Glass Type

This listing is titled with reference to the IS 2619, ISO 3819 and DIN 12331 standard numbers in its product name, which helps procurement staff line it up against a tender schedule. No claim of conformity or testing is made here; if a tender asks for conformity documentation, ask for it at enquiry. The title also does not name the glass, so check whether it is borosilicate before the beaker is heated. Where borosilicate must be stated in the listing itself, choose the borosilicate tall form item.

Specifications

Applications

• Potentiometric acid-base titrations, recording pH on a meter after each addition from the burette
• Conductometric titrations, such as hydrochloric acid against sodium hydroxide, where the cell must stay immersed as the volume grows
• Measuring the pH of soil extracts, water samples and buffer solutions
• Gravimetric precipitations, letting the solid settle into a compact layer so the clear liquid can be decanted

Care & Handling

• Stand the tall beaker in the centre of the stirrer plate and start stirring slowly, so the bar couples without rocking the vessel.
• Support electrodes in their own clamp instead of resting them against the rim.
• Heat only on wire gauze or a hot plate, and only if the glass has been confirmed as heat-resistant.

Why Choose LabEquip

Chemistry, soil-testing and water-testing labs order these beakers mainly for pH, conductivity and titration work, often together with low form sets. LabEquip lists them in its Lab Glassware category; send sizes, quantities and any tender paperwork you need through the contact page.

Frequently Asked Questions

Why is a tall beaker preferred for titrations with a pH electrode?

Its depth keeps the electrode bulb and junction covered and leaves room for a stirrer bar underneath, even with a modest sample volume. The burette tip can then sit just above the liquid, and the narrow walls reduce splashing as the stirrer speed rises.

Is a tall beaker less stable than a low form one?

Yes. Its higher centre of gravity makes it easier to tip, particularly when a magnetic stirrer is running or an electrode cable pulls on it. Keep it away from the bench edge, fill it no more than the method needs, and hold the electrode in a separate clamp.

How much liquid is needed to cover an electrode?

Enough to cover the reference junction, which sits a short way above the glass bulb, with the stirrer bar turning clear below. Choose the smallest beaker size that achieves this, so the sample is not diluted or wasted.

Can a tall beaker be used for boiling?

Yes, provided the glass is heat-resistant. The tall walls hold back spatter and let some vapour condense and run back, so less liquid is lost. Add anti-bumping granules before heating and use a hot plate or wire gauze rather than a bare flame.

Can a solution be left in a beaker overnight?

Only briefly and covered. A beaker has no seal, so solvents evaporate, dust settles and alkaline solutions such as sodium hydroxide absorb carbon dioxide from the air, changing their concentration. Use a watch glass or film for short holds and a stoppered reagent bottle for storage.

How is mineral scale removed from a narrow beaker?

Fill it with dilute hydrochloric or citric acid and leave it until the scale dissolves, then wash with laboratory detergent using a long-handled soft brush. Rinse with tap water and then distilled water, and dry it upside down on a peg or rack.

Last Updated: September 2026