Description
Erlenmeyer flasks DURAN®, 25 ml, are small conical laboratory flasks manufactured from DURAN® borosilicate glass with a standard ground joint NS 19/26. Designed to DIN 12387, each flask has a body diameter of 42 mm and a height of 70 mm, offering a compact format for micro-scale work, sample aliquots and teaching demonstrations. The conical shape aids efficient swirling and mixing while the ground joint enables leak-resistant coupling to stoppers, adapters or other jointed apparatus. Packs contain 10 pieces, making them practical for parallel experiments and shared laboratory stocks. These flasks from manufacturer Lenz suit organic and inorganic chemistry, media preparation and general wet-lab routines where a small working volume is required. DURAN® glass delivers the chemical durability and thermal performance expected in everyday laboratory glassware. Defined outer dimensions help with rack storage, heating-block compatibility and reproducible assembly of small jointed set-ups. The 25 ml capacity is ideal when reagent economy and reduced waste are priorities.
This article is part of Erlenmeyer flasks, in Beakers & flasks.
Key features
- Pack size: 10 pc(s)
- Product type: Erlenmeyer flask
- Material: DURAN® borosilicate glass
- Nominal volume: 25 ml
- Ground joint: NS 19/26
- Standard: DIN 12387
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Questions about Erlenmeyer flasks, DURAN®, 25 ml, joint 19/26, DIN 12387, Ø 42 mm, H 70 mm
What is this article?
Erlenmeyer flasks, DURAN®, 25 ml, joint 19/26, DIN 12387, Ø 42 mm, H 70 mm is the article on this page. Luminix Health distributes Lenz for laboratory use. It sits in Erlenmeyer flasks, inside Beakers & flasks, in Labware.
An Erlenmeyer, or conical, flask has a flat base and a narrowing wall so a liquid can be swirled. It is the ordinary culture and titration flask. A baffled wall is a different article, used when the swirl must turn the liquid over.
A beaker is an open working vessel: easy to pour, poor as a measure. An Erlenmeyer flask has a flat base and a conical wall so a liquid can be swirled without climbing out. A round-bottom flask is for heating under a condenser, because the heat meets a curved wall and the joint at the neck connects to the rest of the glassware. Borosilicate is the glass that survives the temperature change. These forms are listed under ISO laboratory glassware.
Which category should I open next?
The category is Beakers & flasks. The sub-category is Erlenmeyer flasks. The catalogue is Labware.
Shelves beside this one are Round-bottom flasks, Beakers, Reaction vessels & jacketed vessels, Flat-bottom flasks, Flasks (other) and Beaker & flask accessories.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

