Beschrijving
Straight burette, class AS, clear with blue graduation and Schellbach stripe, 25 ml capacity subdivided to 0,05 ml, is a precision volumetric instrument manufactured from pre-vacuum calibrated 3.3 borosilicate glass tubing conforming to ISO 385 and calibrated to DIN/ISO class AS. Nominal values and inscriptions appear in durable blue enamel on the clear glass body. The Schellbach stripe, visible as a narrow blue band set in the centre of a broader white band, supports simpler and more precise reading of the meniscus during titration work. The burette is supplied with an interchangeable PTFE stopcock that needs no lubrication and delivers excellent drop control; identical keys mean cleaning does not require pairing of matched components. Individual calibration by automatic robots helps prevent deviations from the stated nominal volume. The DE-M conformity marking of the German weights and measures authority and the batch number are printed on the body surface, and the batch certificate can be downloaded. Offered by manufacturer ISOLAB Laborgeräte, this straight burette is well suited to accurate volumetric analysis and routine titration in analytical, research and educational laboratories. Pack size is one piece.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Product type: Burette
- Capacity: 25 ml
- Graduation: 0,05 ml
- Calibration class: AS (DIN/ISO)
- EAN: 4250362622174
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Questions about burette - straight - clear - PTFE stopcock - Class AS - conf. batch cert. -
What is this article?
burette - straight - clear - PTFE stopcock - Class AS - conf. batch cert. - 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.
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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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.