The Kartell Petri Dish Ø 90 mm PS, 3-Section, Sterile is a disposable polystyrene culture dish engineered for microbiology, cell culture, or sample plating workflows requiring multiple, isolated test zones in a single plate. Divided into three independent compartments within a standard 90 mm dish, this format enables simultaneous testing of different samples or media — saving space, reducing waste, and increasing throughput.
This Kartell 3-section 90 mm PS Petri dish combines the convenience of a standard plate with enhanced efficiency — enabling multiple independent assays or cultures on a single sterile plate. It’s especially useful for labs that need to compare conditions side-by-side, run multiple tests with minimal consumables, or optimize incubator space.
It is a disposable polystyrene culture dish engineered for microbiology, cell culture, or sample plating workflows requiring multiple, isolated test zones in a single plate. Divided into three independent compartments within a standard 90 mm dish, this format enables simultaneous testing of different samples or media, saving space, reducing waste, and increasing throughput.
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7 mins 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.
7 mins 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.
9 mins 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.
9 mins 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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6 mins 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.
