The Heathrow Scientific Replacement Pen Sharpie Black for Colony Counter eCount is designed for precise and reliable marking during colony counting procedures. This pack includes 12 pens, ensuring that you always have a fresh pen on hand. The Sharpie black ink provides a bold, clear mark that remains visible on petri dishes, slides, and other laboratory surfaces. Ideal for microbiological labs, this pen is a must-have for accurate colony counting and labeling tasks.
This replacement pen pack ensures you always have the tools you need for accurate, visible colony counting and labeling, making it essential for any microbiological lab.
It is designed for precise and reliable marking during colony counting procedures. This pack includes 12 pens, ensuring that you always have a fresh pen on hand. The Sharpie black ink provides a bold, clear mark that remains visible on petri dishes, slides, and other laboratory surfaces. Ideal for microbiological labs, this pen is a must-have for accurate colony counting and labeling tasks.
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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.
1 min read
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.
1 min read
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.
1 min read
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 456.50
Inc. GST
