F1/M1 Calibration Weights | Stainless Steel Test Weights for Lab & Industrial Scales

Calibration Weights is essential for maintaining the accuracy and compliance of all laboratory and industrial weighing equipment, including our own electronic scales and analytical balances. We provide a complete selection from E2 (highest precision), F1 (commercial/lab precision), to M1 (industrial/general use) classes, ensuring you have the right tool for every scale type. Each weight is constructed from high-quality stainless steel for superior corrosion resistance and features a low magnetic susceptibility. Whether you are performing routine calibration checks or seeking external certification, trust our test weights to deliver verifiable accuracy.