Description
Burettes, class AS, with straight glass cock are precision volumetric instruments designed for laboratory titration. These 25 ml burettes are manufactured from DURAN® brown glass with white graduation markings and a straight glass stopcock for controlled dispensing. Brown glass supports work with light-sensitive reagents, while class AS accuracy underpins analytical procedures that need reliable volume delivery. White graduations contrast clearly on the amber body to aid meniscus reading during titration. Offered as two pieces per pack from manufacturer Hirschmann, the set fits chemistry, quality control and research benches that use calibrated glass burettes for routine liquid handling. Pack weight is 0,420 kg. These brown-glass burettes form part of standard titration apparatus and glass burette ranges and integrate readily with complementary volumetric glassware used in everyday analytical workflows.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 25 ml
- Accuracy class: AS
- Material: DURAN® brown glass
- Graduation: White
- Stopcock: Straight glass cock
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Questions about Burette class AS With a straight glass stopcock, 25 ml
What is this article?
Burette class AS With a straight glass stopcock, 25 ml is the article on this page. Luminix Health distributes Hirschmann for laboratory use. It sits in Burettes, inside Volumetric glassware, in Labware.
A burette delivers a measured volume through a stopcock, which is how a titration is read. Class A and class AS state the tolerance. The stopcock, glass or PTFE, and the volume of the burette are the choices. A dirty bore changes the delivered volume.
Volumetric glassware is glass that has been calibrated to contain or to deliver one stated volume at a reference temperature. That calibration is the whole point. Class A and class AS have a tighter tolerance than class B. A volumetric flask contains. A pipette and a burette deliver. A measuring cylinder is the coarser reading, used when the volume is not the result. The classes sit under ISO laboratory glassware. The chain back to the unit of volume is the work of the BIPM and of NIST.
Which category should I open next?
The category is Volumetric glassware. The sub-category is Burettes. The catalogue is Labware.
Shelves beside this one are Volumetric flasks, Measuring cylinders, Mixing cylinders and Volumetric accessories & certificates.
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.