Calibration Weight E1 Class 1 mg – 20 kg
Premium E1 class calibration weight set (1 mg to 20 kg), ideal for high-precision calibration of microbalances, analytical balances, and laboratory-grade weighing systems. Manufactured according to OIML R111-1 with ultra-low tolerances. Includes case, accessories, and optional certificate.
This E1 class stainless steel calibration weights are designed for laboratories and applications that demand the highest level of weighing accuracy, including metrology, pharmaceuticals, research, and high-end industrial calibration.
Available from 1 milligram to 20 kilograms, manufactured according to OIML R111-1 standards for E1 class weights, the highest standard available. Each weight is made from non-magnetic austenitic stainless steel with a mirror-polished finish, ensuring excellent long-term stability and corrosion resistance.
Under request the weights can be provided with a traceable calibration certificate (e.g., ISO/IEC 17025 or DAkkS).
Τechnical Specifications:
Class: OIML E1
Material: Polished non-magnetic stainless steel
Density: Approx. 8000 kg/m³
Magnetic susceptibility (χ): < 0.05
Construction: Monoblock up to 500 g, cavity design for heavier weights
Finish: Mirror-polished surface
Case & Accessories: Protective case, tweezers, gloves, cleaning brush
Optional: Individual or set-level calibration certificate
| Nominal Value | Tolerance (± mg) |
|---|---|
| 1 mg | 0.006 |
| 2 mg | 0.006 |
| 5 mg | 0.006 |
| 10 mg | 0.008 |
| 20 mg | 0.010 |
| 50 mg | 0.012 |
| 100 mg | 0.016 |
| 200 mg | 0.020 |
| 500 mg | 0.025 |
| 1 g | 0.030 |
| 2 g | 0.040 |
| 5 g | 0.050 |
| 10 g | 0.060 |
| 20 g | 0.080 |
| 50 g | 0.100 |
| 100 g | 0.160 |
| 200 g | 0.300 |
| 500 g | 0.800 |
| 1 kg | 0.3 g (300 mg) |
| 2 kg | 3.0 g |
| 5 kg | 8.0 g |
| 10 kg | 16.0 g |
| 20 kg | 30.0 g |
