Description
Burettes with Schellbach stripes, class AS are precision glass titration instruments for accurate volumetric work in the laboratory. Made from DURAN® glass and fitted with a straight valve cock, these 25 ml burettes carry the Schellbach stripe that sharpens meniscus reading against a clear visual reference. Class AS grading supports analytical titration where dependable volume delivery is required. The straight valve cock allows controlled dispensing during acid–base and other volumetric determinations in chemistry, quality control and research. Offered as a pack of two pieces from manufacturer Hirschmann, the set suits routine liquid-handling benches that rely on calibrated glass burettes. Pack weight is 0,400 kg. These instruments sit within standard glass burette and titration apparatus ranges used for everyday volumetric analysis alongside complementary liquid-handling glassware.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 25 ml
- Accuracy class: AS
- Material: DURAN® glass
- Design: Schellbach stripes
- Stopcock: Straight valve cock
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Questions about Burettes with Schellbach stripes, cl. AS, DURAN®, straight valve cock, 25 ml
What is this article?
Burettes with Schellbach stripes, cl. AS, DURAN®, straight valve cock, 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.