Specifications
RM 357.50
Inc. GST
The Thermo Nalgene Vented Closure 45-430mm Sterile PE/HD Blue PTFE Membrane (Pack of 12) is designed for secure sealing and venting in laboratory containers. This high-quality closure features a polyethylene (PE) and high-density polyethylene (HDPE) construction for durability and chemical resistance. The blue PTFE membrane ensures that air can flow through while preventing contamination, making it ideal for use in applications where gas exchange is necessary without exposure to external contaminants. The sterile design ensures that the closures are free of bacteria or other contaminants, making them suitable for critical laboratory applications.
Ensure safe, contamination-free storage and efficient gas exchange with the Thermo Nalgene Vented Closure, perfect for critical laboratory applications that require a secure seal and controlled venting.
RM 357.50
Inc. GST
Manufacturer P/N
4114-0045
Part Number
6.227 924
Manufacturer
Thermo Scientific
RM 302.50
Inc. GST
Manufacturer P/N
4114-0038
Part Number
6.229 663
Manufacturer
Thermo Scientific
It is designed for secure sealing and venting in laboratory containers. This high-quality closure features a polyethylene (PE) and high-density polyethylene (HDPE) construction for durability and chemical resistance. The blue PTFE membrane ensures that air can flow through while preventing contamination, making it ideal for use in applications where gas exchange is necessary without exposure to external contaminants. The sterile design ensures that the closures are free of bacteria or other contaminants, making them suitable for critical laboratory applications.
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1 min read
Cleaning laboratory glassware properly is essential for accurate, safe, and repeatable lab work. This guide explains how to remove stubborn residue from beakers, flasks, bottles, volumetric glassware, and other lab glassware, including grease, dried salts, biological residue, stains, and burnt deposits. It also covers safe cleaning methods, common mistakes, drying and storage tips, and when damaged glassware should be replaced.
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Pipette calibration helps laboratories confirm that liquid handling results remain accurate, repeatable, and traceable. This guide explains how pipettes are calibrated to ISO 8655 standards, including gravimetric testing, environmental control, correct tip selection, volume testing, calibration records, and common mistakes to avoid. It also covers when to use in-house calibration and when an external calibration service may be more suitable.
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A free molarity and dilution calculator covering four essential lab calculations: C1V1=C2V2 dilution (solve for any unknown), molarity from mass, mass from molarity, and serial dilution table generation. Includes worked examples, a concentration units guide and step-by-step preparation instructions for every result.
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Free online buffer preparation calculator. Select your buffer system, enter target pH, concentration and volume, and get an exact lab-ready recipe with reagent masses and step-by-step instructions. Covers PBS, Tris-HCl, sodium phosphate, acetate, HEPES, MOPS and more.
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1 min read
Laboratory balances are essential weighing instruments used to measure samples, reagents, powders, chemicals and materials with accuracy and consistency. They are commonly used in research, education, quality control, pharmaceutical testing, food testing, industrial laboratories and general scientific workflows.
RM 357.50
Inc. GST
