Calibration and Test Weights: Choosing the Right OIML Weights for Your Scale
Accurate calibration starts with an accurate reference, and that's exactly what a set of certified test weights gives you. Whether you're verifying a bench scale before an audit, calibrating an industrial platform scale, or checking a precision balance in the lab, using the correct OIML-class weight is essential for compliant, traceable results. Independent Scale Service stocks the full Adam Equipment range of calibration and test weights — from single reference weights through to complete multi-piece sets.
OIML Cast Iron Weights
Built for heavy-duty calibration work, the OIML Cast Iron Weights are available up to 20,000 g capacity and are OIML class M1 compliant — the right choice for calibrating industrial platform scales, floor scales and hoppers where large reference loads are needed.
- Capacity: 20,000 g
- 7.2 g/cm³ density, cast iron construction for durability
- Built-in handle for easy transport
- Individual weights supplied in a plastic case
- 1-year warranty
From $77.00 AUD — Shop OIML Cast Iron Weights →
OIML Weight Sets
For labs and workshops that need a complete range of reference masses in one case, the OIML Weight Sets cover everything from milligrams up to 5 kg, and are available in classes E1, E2, F1 and M1 depending on the precision your application demands.
- Stainless steel construction (E1/F1/M1: 7.9 g/cm³, E2: 7.96 g/cm³)
- Aluminium case to safely store the full set
- Includes white cotton gloves, tweezers, brush and cleaning cloth
- 1-year warranty
From $126.50 AUD — Shop OIML Weight Sets →
OIML Weights
Need just a single reference weight rather than a full set? The OIML Weights range is sold individually from 1 g up to 5,000 g, in classes E2, F1 and M1, so you can top up an existing set or buy exactly the capacity your calibration procedure calls for.
- Capacity: up to 5,000 g
- Rugged stainless steel construction
- Impact-resistant plastic case included with each weight
- Available in classes E2, F1 and M1
- 1-year warranty
From $22.00 AUD — Shop OIML Weights →
Why buy from Independent Scale Service
Independent Scale Service is an Australian NATA-accredited (ISO/IEC 17025) calibration provider and an authorised Adam Equipment dealer, with offices in Sydney and Melbourne. Every weight we sell can be paired with our professional on-site or in-house calibration services, so you can be confident your scales stay compliant with industry standards long after the purchase.
Browse the full range on our Calibration and Test Weights collection page, or get in touch if you're not sure which class or capacity is right for your equipment.
