€660.75excl. VAT
In stock
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High-precision ASTM Class 1 weights for accurate balance calibration.
Ohaus 80859550 CalPak ASTM 500g/20g CL1 Accrd TR Calibration Weight Set
Weight Set Range 20 g to 500 g Weight Material Troemner Alloy 8 Set Contents 20 g; 500 g
Features
OHAUS Cal-Paks are precision-engineered calibration weight sets designed to maintain high-performance weighing accuracy. Ideal for use with OHAUS Semi-Micro, Analytical, and Precision balances, these sets provide an efficient solution for routine calibration and accuracy verification. Manufactured from high-quality Troemner Alloy 8, OHAUS Cal-Paks meet or exceed ASTM Class 1 requirements, ensuring durability and precision. Designed for repeatability, accuracy testing, and span calibration, these weights help identify systematic errors and maintain consistent performance across various weighing applications. Each set is backed by an ISO/IEC 17025 accredited certificate, providing full traceability to international standards. Perfect for laboratories, research facilities, and quality control environments, OHAUS Cal-Paks offer a reliable and convenient calibration solution for maintaining precision in highly regulated and demanding industries.INCLUDED: The Ohaus 80859550 CalPak ASTM 500g/20g CL1 Accrd TR Calibration Weight Set includes:
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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.
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 20 October 2026
€661 sits in the middle range mass standards here. The middle half of the 603 with a price runs from €78 to €1,897.
