Key Highlights
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Manufactured to International Recommendation OIML R111 specifications
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OIML Class F1 accuracy for precision calibration and verification tasks
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Supplied as a single calibration weight kit with protective case
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Includes handling glove to minimize contamination during use
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Polished surface finish for improved stability and durability
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Nominal value permanently marked on the weight
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Optional laser marking available for identification and traceability
The 20 kg - 1 g Calibration Weight, OIML Class F1 is a precision calibration solution designed for laboratory, educational, and industrial weighing applications. Manufactured in compliance with OIML R111 international standards, this F1 class weight delivers reliable accuracy suitable for both calibration and routine verification processes.
Each kit includes a single 20 kg calibration weight supplied in a protective case along with a glove for safe handling. The polished surface finish enhances resistance to surface contamination while maintaining consistent mass stability over time. The nominal value is clearly marked on the weight, and each unit is sold as an individual part for easy inventory management.
For facilities requiring enhanced identification or asset tracking, optional laser marking is available for OIML F1 and F2 weights at an additional charge.
Applications
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Calibration of Class I and Class II balances
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Student and educational laboratory use
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Routine verification and performance checks
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Tolerance testing and quality assurance
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Rough weighing and industrial validation
Technical Specifications
| Specification | Details |
|---|---|
| Nominal Value | 20 kg |
| Accuracy Class | OIML F1 |
| Standard | OIML R111 |
| Surface Finish | Polished |
| Material Density | Approx. 7.95 g/cm3 |
| Nominal Marking | Permanently marked |
| Optional Feature | Laser marking available |
| Packaging | Protective case with handling glove |
Achieve dependable calibration and verification results with OIML Class F1 calibration weights from SellEton Scales. 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.








