Beschrijving
Straight burette class AS, brown glass with white graduation and PTFE stopcock, 25 ml:0,05 is a precision volumetric instrument for accurate titration and analytical work. It is manufactured from pre-vacuum-calibrated 3.3 borosilicate tubing in accordance with ISO 385 and calibrated to DIN/ISO class AS. Each unit carries the DE-M conformity mark of the German weights and measures authority. Individual robotic calibration minimises deviation from nominal values; the conformity mark and batch number are printed on the body surface, and the batch certificate can be downloaded from the manufacturer website. The burette is supplied with an interchangeable PTFE stopcock that requires no lubrication and provides reliable drop control. Identical keys remove the need for matched-pair alignment during cleaning. Nominal values and inscriptions on brown burettes are printed in white enamel. A Schellbach stripe—appearing as a narrow blue band centred within a broader white band—supports easier and more accurate observation of the meniscus line. This straight burette from manufacturer ISOLAB Laborgeräte is suited to laboratories that need class AS accuracy with light-protected brown glass in a single-piece pack.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Product type: Straight burette
- Capacity: 25 ml
- Graduation: 0,05 ml
- Glass: Brown 3.3 borosilicate, white enamel
- EAN: 4250362622235
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Questions about burette - straight - amber - PTFE stopcock - Class AS - conformity batch
What is this article?
burette - straight - amber - PTFE stopcock - Class AS - conformity batch is the article on this page. Luminix Health distributes ISOLAB for laboratory use. It sits in Burettes, inside Volumetric glassware, in Labmateriaal.
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 Labmateriaal.
Shelves beside this one are Volumetric flasks, Measuring cylinders, Mixing cylinders and Volumetric accessories & certificates.
What should I check before I order?
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.