Key Highlights
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Designed to meet OIML R111 specifications for Class M1 weights.
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Supplied as a single 5 kg weight with a protective storage case.
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Nominal value clearly marked on the weight for easy identification.
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Features a durable satin finish consistent with OIML M1 and M2 standards.
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Manufactured from stainless steel with a density of approximately 7.95 g/cm³.
This Rice Lake 5 kg calibration weight is manufactured as a complete set to serve as a high-quality reference standard for routine testing, calibration, and verification of weighing instruments. Its construction adheres to the international criteria outlined in OIML Recommendation R111 for Class M1 weights, providing assurance of its metrological characteristics and suitability for commercial and industrial laboratory applications where reliable precision is mandatory.
The weight features a nominal mass value permanently marked on its surface and is machined from stainless steel to a specified density, allowing for accurate calculations involving air buoyancy when required for highest accuracy work. The included protective case safeguards the weight from dust, corrosion, and damage during storage and transport, preserving its calibration integrity and long-term value. This set represents a fundamental tool for maintaining measurement confidence and compliance in any technical setting dependent on precise mass determination.
| Specification | Details |
|---|---|
| Set Capacity | 5 kg |
| Accuracy Class | OIML Class M1 |
| Finish | Satin (per OIML M1/M2) |
| Material / Density | Stainless Steel, ~7.95 g/cm³ |
| Standard | OIML R111 |
| Certificate | Standard (Accredited Certificate available for Class E1/E2) |
| Included Accessories | Protective Storage Case |
| Optional Feature | Serial Number Stamping (100g & larger, additional charge) |
Secure your essential calibration standard from an authorized source. Contact our team today to request pricing, confirm availability, or speak with a calibration specialist for your laboratory requirements.
Free shipping: To the 48 contiguous states (residential, farm and rural deliveries may carry a carrier surcharge).
Ship date: Rice Lake Weighing Systems products ship on the maker's own lead time; we confirm the date when you order, or call 844-735-5386 before you buy.
Tracking: Emailed the moment your order ships.
Questions: (844) 735-5386 or info@selletonscales.com.








