OIML Standard Weight
An OIML Standard Weight Set is a collection of precision masses certified to meet the strict accuracy and manufacturing tolerances defined by the International Organization of Legal Metrology (OIML). These weights are the primary reference standards used for the calibration, verification, and testing of analytical and precision balances and scales in regulated environments where legal traceability is required.
Why is OIML Certification Critical?
- Using an OIML-certified weight set is not just about precision; it’s about legal and regulatory compliance.
- Assured Accuracy: The OIML mark guarantees the weight meets international accuracy and manufacturing standards.
- Global Recognition: OIML certification is recognized worldwide, facilitating international trade and acceptance of test data.
- Audit Readiness: The accompanying calibration certificate provides the necessary documentation to satisfy internal and external audits.
Applications:
Balance & Scale Calibration: The primary use is for the periodic calibration and adjustment of laboratory and industrial weighing instruments to ensure accuracy over time.
Quality Assurance & Compliance: Essential for laboratories operating under ISO/IEC 17025, ISO 9001, GMP/GLP, and other quality frameworks that require documented calibration records.
Legal Metrology: Used by verification authorities to test and certify commercial scales used in trade (e.g., grocery scales, jewelry scales).
R&D and Manufacturing: Provides a trusted mass standard for critical formulation, formulation, and quality control processes.
Specification
| Set | 1mg ~ 100mg | 1mg ~ 200mg | 1mg ~ 500mg |
| Class | F1 / F2 / M1 | ||
| Material | Stainless Steel | ||
| Density | 7.9g/cm³ | ||
| Magnetic Susceptibility | ˂0.05 | ||
| Intensity of Polarization | ˂25 | ||
| Weight Pieces | 21 | 23 | 24 |
| Weight Composition | 1mg, 2mg, 2mg, 5mg, 10mg, 20mg, 20mg, 50mg, 100mg, 200mg, 200mg, 500mg, 1g, 2g, 2g, 5g, 10g, 20g, 20g, 50g, 100g, |
1mg, 2mg, 2mg, 5mg, 10mg, 20mg, 20mg, 50mg, 100mg, 200mg, 200mg, 500mg, 1g, 2g, 2g, 5g, 10g, 20g, 20g, 50g, 100g, 200g, 200g |
1mg, 2mg, 2mg, 5mg, 10mg, 20mg, 20mg, 50mg, 100mg, 200mg, 200mg, 500mg, 1g, 2g, 2g, 5g, 10g, 20g, 20g, 50g, 100g, 200g, 200g, 500g |
| Carrying box | Aluminum Box | ||
PDF Data Sheet