Calibration Weights are used when calibrating weighing scales and balances to ensure consistent weighing performance and accuracy. Choose from our selection calibration test weights and weight sets ranging from 1 g to 50 kg with stainless steel, cast iron and brass variations available.
Standard: ASTM E617-13
Class: Class 0, Class 1, Class 2, Class 3, Class 4, Class 5, Class 6, Class 7
Material：Stainless steel, steel plated.
Process：Mirror/Mechanical polishing /Chrome plated/ Titanium plated（Optional）
Nominal Value: 1g-50kg
Applicable Place: Laboratories, Pharmaceutical Factories, Scales Factories, etc. Applications：Calibration for scales, balances or other weighing products.
Higher accuracy, suitable for different using environment and requirement.
Nominal Value of weight set（Customize available）：
Packages: Aluminum Case /ABS box
| Denomination Metric |
Tolerance | |||||||
| Class 0 | Class 1 | Class 2 | Class 3 | Class 4 | Class 5 | Class 6 | Class 7 | |
| 50kg | 63mg | 125mg | 250 | 500mg | 1.0g | 2.5g | 5g | 7.5g |
| 30kg | 38 | 75 | 150 | 300 | 600mg | 1.5g | 3g | 4.5g |
| 25kg | 31 | 62 | 125 | 250 | 500 | 1.2g | 2.5g | 4.5g |
| 20kg | 25 | 50 | 100 | 200 | 400 | 1.0g | 2g | 3.8g |
| 10kg | 13 | 25 | 50 | 100 | 200 | 500mg | 1g | 2.2g |
| 5kg | 6.0 | 12 | 25 | 50 | 100 | 250 | 500mg | 1.4g |
| 3kg | 3.8 | 7.5 | 15 | 30 | 60 | 150 | 300 | 1.0g |
| 2kg | 2.5 | 5.0 | 10 | 20 | 40 | 100 | 200 | 750mg |
| 1kg | 1.3 | 2.5 | 5.0 | 10 | 20 | 50 | 100 | 470 |
| 500g | 0.60 | 1.2 | 2.5 | 5.0 | 10 | 30 | 50 | 300 |
| 300g | 0.38 | 0.75 | 1.5 | 3.0 | 6.0 | 20 | 30 | 210 |
| 200g | 0.25 | 0.50 | 1.0 | 2.0 | 4.0 | 15 | 20 | 160 |
| 100g | 0.13 | 0.25 | 0.50 | 1.0 | 2.0 | 9 | 10 | 100 |
| 50g | 0.060 | 0.12 | 0.25 | 0.60 | 1.2 | 5.6 | 7 | 62 |
| 30g | 0.037 | 0.074 | 0.15 | 0.45 | 0.90 | 4.0 | 5 | 44 |
| 20g | 0.037 | 0.074 | 0.10 | 0.35 | 0.70 | 3.0 | 3 | 33 |
| 10g | 0.025 | 0.050 | 0.074 | 0.25 | 0.50 | 2.0 | 2 | 21 |
| 5g | 0.017 | 0.034 | 0.054 | 0.18 | 0.36 | 1.3 | 2 | 13 |
| 3g | 0.017 | 0.034 | 0.054 | 0.15 | 0.30 | 0.95 | 2.0 | 9.4 |
| 2g | 0.017 | 0.034 | 0.054 | 0.13 | 0.26 | 0.75 | 2.0 | 7.0 |
| 1g | 0.017 | 0.034 | 0.054 | 0.10 | 0.20 | 0.50 | 2.0 | 4.5 |
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