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Stainless steel weight for precise laboratory calibration, M1 class.
The ZWIEBEL Calibration Weight is a 500g stainless steel laboratory weight, classified as M1. It ensures high precision with a maximum permissible error of ± 25 mg. The weight is verified using a precision balance with a resolution of 0.01g (10mg), as shown in the accompanying photo. This uncalibrated weight comes in a protective plastic case, making it an ideal choice for reliable calibration and measurement standardization in professional laboratory settings.
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We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
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Last updated 19 October 2026
