Test Weights

METTLER TOLEDO's world leading expertise in metrology extends to test weights, weight sets and weight calibration services. The weight portfolio covers weights according to OIML or ASTM from fifty micrograms to five tons in all accuracy classes. Our test weights are used all over the world, not only for testing balances but also as primary standards in mass laboratories.

The proprietary electrolytic polishing process for knob and wire weights in the upper class range eliminates microscopic protrusions in the weight’s surface which is far smoother compared to mechanical polishing. Thanks to the enhanced properties of the passive oxide film, long-term stability of the test weight is improved.

Choose from a comprehensive selection of test weights and related calibration services. We offer weights and services of the highest quality – even for users with limited budget. Building on many years of experience and customer feedback, our weight boxes and accessories have an unmatched reputation. Profit from short recalibration times and trustworthy services with our global network of accredited mass laboratories.

Test your balances securely, and in accordance with USP <41>, by using just two test weights to test at 5% and 100% of the capacity of each balance. Not only is this unique approach much faster, but purchasing and recalibration costs are substantially reduced. CarePacs® include tweezers, gloves and other accessories for professional weight handling.

The unique weight identification system "WeightLink™" works with the balance firmware to cross-check the weight against its calibration certificate, making it impossible to test using the wrong weight. With weight parameters transferred electronically to the balance, the system guarantees full traceability thus data integrity is given.


Kalibreringslodder	Precision Weights	WeightLink™
High-grade stainless steel knob and wire weights for balance calibration purposes and reference usage for weight comparisons. (OIML E1, E2, F1)	Stainless steel knob and sheet weights for routine testing to ensure reliable weighing processes. (OIML F1, F2, M1 and ASTM class 1, 2, 3, 4)	WeightLink™ is an innovative weight identification system that guarantees full traceability of your balance tests
Positive Tolerances Only A far longer life span thanks to guaranteed positive tolerances Lifetime Guarantee Replaced free of charge if found out of assigned OIML tolerance Vacuum Melted Steel – Highest Material Purity No dissolved gases and improved oxide cleanliness Electrolytic Polishing – Best Surface Smoothness Enhanced properties produce unmatched stability One-Piece Design For improved mass stability Made in Switzerland – Solid Name, Solid Products Traditional manufacturing meets new technologies	Cost Savings with CarePacs® Buy only the recommended weights for routine testing Time Savings with CarePacs® Easy, rapid testing approach supported by SOPs Safe Shipment and Protected Storage Supplied in a FDA-compliant and easy to clean plastic box Made Exclusively from Stainless Steel for Longevity Excellent weight life span right down to the mg range Two-Piece Design For optimized adjustment processes	Proven Traceability Use weights with unique ID marked as a matrix code on the weight Secure Balance Testing Balance firmware validates certificate and weight data before starting balance test Improved Productivity Automatic transfer of weight parameters into balance firmware Complete Reports Enriched test printout means less manual recording Easy Use Balance firmware guides through the testing process


Tailored Weights	Heavy-duty Weights
Test weights and artifacts for specific needs such as nominal values in the microgram range, or weights shaped for specific applications.	Stackable stainless steel or cast iron weights for testing of scales with capacities up to several tons. (OIML F1-M3)
Microgram Weights For areas where milligram weights are no longer sufficient Buoyancy and Volume Artifacts For meeting specialized application needs Silcon Spheres As a reference for specialized volume measurement Service Technician Weights For sure and productive calibration processes	Save Testing and Lifting Standardized design for safe stacking and to fit fork lifts Fast Testing Hoist-friendly design for efficient handling Suited to Harsh Environments Designed for heavy-duty operation under challenging conditions Finest Material Suited for industries requiring wash-down test equipment

Test Weights

Perfectly designed to support testing and calibration of balances

Test Weights for Scales & Balances

Kalibreringslodder

Precision Weights

WeightLink™

Tailored Weights

Heavy-duty Weights