OIML E2 calibration weights are high-accuracy reference standards used to verify and adjust analytical balances, and to support traceable weighing in regulated and quality-controlled environments. They offer an excellent balance between metrological performance and practical everyday use in laboratories.
In the COLO Lab Store, the OIML E2 Calibration Weights subcategory includes certified weight sets across a wide mass range, suitable for analytical balances and precision instruments. Choose the set configuration and nominal masses that match your balance readability, tolerance requirements, and internal calibration plan.
WHERE OIML E2 IS TYPICALLY USED
- Analytical balances – routine performance checks and balance adjustment support.
- Metrology & calibration labs – reference weights for comparison and verification workflows.
- Quality systems & audits – traceable documentation for ISO/GLP/GMP-oriented processes.
PRACTICAL SELECTION NOTES
Select E2 weights when you need higher accuracy than F1, especially for analytical balances and reference checks. For microbalances and ultra-low uncertainties, E1 may be required. Use certified weights with an accredited calibration certificate to ensure full traceability and audit readiness. Each COLO weight set is supplied in a protective case with handling tools to minimise contamination.
For best results, align the chosen OIML E2 mass range with your balance capacity and readability, and document the calibration intervals and acceptance criteria in your weighing SOP.
OIML E2 Calibration weight
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