Marienfeld 2332241 100ml Clear Glass Volumetric Flask | Class A Ground Joint-Labcan Scientific

Product Description

Model 2332241 is a Class A precision volumetric flask manufactured by Paul Marienfeld GmbH (Germany), specially designed for high-accuracy quantitative liquid preparation in analytical laboratories.

Made from premium borosilicate 3.3 clear glass, this volumetric flask features minimal thermal expansion and outstanding chemical inertness, supporting autoclave sterilization at 121°C for repeated lab circulation. Equipped with NS12/21 standardized ground joint and matched HDPE poly stopper, it achieves reliable sealing to avoid volatile solvent loss during standard solution mixing and temporary preservation.

Calibrated to Class A tolerance ±0.100ml at reference temperature 20℃, the single fused blue enamel graduation ring delivers permanent, corrosion-resistant volume marking. The pear-shaped flat base ensures stable placement, while the slim long neck provides clear visual judgment of liquid meniscus for ultra-precise constant volume operation.

All 2332241 flasks pass German DE-M conformity certification according to DIN EN ISO 1042 standard, with batch traceability code and official batch certificate supplied with each package. Widely adopted for preparing standard stock solutions, serial dilution, titration analysis, raw material content testing in pharmaceutical QC labs, cosmetic efficacy test institutions, university chemistry departments and environmental monitoring labs.

This ground joint clear volumetric flask is the standard choice for critical quantitative analysis requiring high volumetric accuracy and full regulatory traceability.

Product Parameters

Item	English Specification
Catalog No.	2332241
Brand	Marienfeld Superior, Made in Germany
Nominal Capacity	100 mL
Glass Material	Borosilicate Glass 3.3, Clear Transparent
Accuracy Class	Class A
Calibration Standard	DIN EN ISO 1042, DE-M Certified
Calibration Mode	Calibrated “In” (To Contain), 20℃ Reference Temp
Volume Tolerance	± 0.100 mL
Ground Joint Size	NS 12/21 Standard Ground Joint
Matching Stopper	HDPE Polyethylene Stopper (Included)
Graduation Mark	Single Circular Blue Fused Enamel Line
Autoclavable	Yes, 121℃ steam sterilization
Chemical Resistance	Resist most acid, alkali & organic solvents
Pack Unit	10 pieces per pack

Product Feature

Premium Borosilicate 3.3 Clear Glass: Low thermal expansion, high thermal shock resistance, fully autoclavable at 121℃, excellent resistance to most acid & alkaline reagents.
Class A DE-M Certified Precision: Calibrated “To Contain (In)” at 20℃, tolerance ±0.100ml, complies with DIN EN ISO 1042, batch conformity certificate included for audit traceability.
NS12/21 Standard Ground Joint: Stable tight sealing with matched HDPE poly stopper, effectively prevent liquid volatilization during mixing and short-term storage.
Fused Enamel Blue Graduation Mark: Single circular volume line fused into glass, resistant to acid, alkali and long-term cleaning, clear reading under all lab lighting conditions.
Pear Flat-Bottom Structure: Stable standing on lab bench, long narrow neck for precise meniscus observation to reduce human volumetric error.
Traceable Batch Coding: Unique batch serial number printed on each flask, full production traceability for pharmaceutical, cosmetic and third-party testing labs.
Germany Original Manufacturing: Marienfeld Superior German lab glassware, uniform wall thickness, no bubble or impurity inside glass body.

Marienfeld 2332241 100ml Class A clear volumetric flask with NS12/21 ground joint & poly stopper, borosilicate 3.3, DIN EN ISO 1042 & DE-M certified, ±0.100ml tolerance, ideal for analytical chemistry & pharmaceutical lab standard solution preparation.