Description
Volumetric Nalgene™ flasks class B made of polymethylpentene (PMP) are precision laboratory vessels for reliable volume measurement and preparation of solutions. These 50 ml narrow-mouth flasks are calibrated both to contain and to deliver at 20 °C and meet ASTM E288 and ISO 384 Class B tolerances, ensuring consistent quality and dependability. The PMP construction combined with screw closures protects against leakage, breakage and contamination while offering good chemical resistance and clarity for everyday analytical work. Each flask carries a tolerance of ± 0,10 ml, is graduated, and features a 13 mm screw closure. The units are autoclavable, although autoclaving will affect accuracy. Supplied as a case of 12 from manufacturer Thermo Scientific - Laboratory Plastics, these Class B volumetric flasks provide a robust, lightweight alternative to glass for routine laboratory volumetric tasks where Class B precision is appropriate. Nominal volume is 0,05 l, supporting standardised preparation and dilution workflows in research and quality-control environments.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 12 pc(s)
- Material: Polymethylpentene (PMP)
- Capacity: 50 ml
- Accuracy class: B
- Tolerance: ± 0,10 ml
- Closure: Screw cap 13 mm
- Technical Information Sheet:
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Questions about Nalgene™ Class B Polymethypentene (PMP) Volumetric Flasks with Screw
What is this article?
Nalgene™ Class B Polymethypentene (PMP) Volumetric Flasks with Screw is the article on this page. Luminix Health distributes Thermo Scientific - Laboratory Plastics for laboratory use. It sits in Volumetric flasks, inside Volumetric glassware, in Labware.
A volumetric flask is calibrated to contain one volume at a reference temperature, with a single mark on a narrow neck. Class A is the tight tolerance. It is not a storage bottle and it is not for heating. The stopper is part of the calibrated article.
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.
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The category is Volumetric glassware. The sub-category is Volumetric flasks. The catalogue is Labware.
Shelves beside this one are Measuring cylinders, Burettes, Mixing cylinders and Volumetric accessories & certificates.
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