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Precision 4kg weight for calibrating balances, ASTM-compliant, certified for accuracy.
This product is the Troemner 4KG Cylindrical Calibration weight, known for its high precision and compliance with ASTM standards. Crafted from high-grade stainless steel, such as Troemner Alloy 8, it features uniform density, low magnetic properties, and exceptional resistance to corrosion. Its cylindrical design comes with a protective polycarbonate case, ensuring durability and reliability. With a density of approximately 7.95 g/cm³ at 20°C and adherence to ASTM Class specifications, it's ideal for calibrating balances with readability from 0.01 g to 0.001 g. Available with ISO/IEC 17025 accredited or traceable certificates, it guarantees international calibration standard compliance, making it indispensable for maintaining accuracy and traceability in laboratory and industrial environments.
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.
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.
Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options 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.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 1 November 2026
The middle half of the 628 with a price runs from €71 to €1,759.
