Cast Iron Calibration Weights — OIML Class 1

Cast Iron Calibration Weights - OIML Class 1 are built for dependable performance in industrial, laboratory, and field service environments. Whether you’re verifying scales, running QC checks, or training staff, these weights deliver reliable accuracy without compromise.

Durable, accurate, and ready to ship from Ontario across Canada

Key Features:

• OIML Class 1 Accuracy — Suitable for high-precision calibration of Class II, III, and IV balances and scales.
• Rugged Cast Iron Construction — Finished with a protective black coating to resist chipping and corrosion.
• Ergonomic Design — Larger sizes feature integrated handles for safe, easy lifting.
• Nominal Value Marking — Clear, permanent weight identification for quick selection.

Available in 5kg, 10kg, and 20kg.