Die OIML (International Organization of Legal Metrology) stuft Gewichte bis 50 kg in 6 Klassen ein:
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Nominaler Gewichtswert | Maximale zulässige Abweichungen pro Gewichtsklasse in mg +/- | |||||
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| E1 | E2 | F1 | F2 | M1 | M2 |
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1 mg | 0.002 | 0.006 | 0.02 | 0.06 | 0.2 | - |
2 mg | 0.002 | 0.006 | 0.02 | 0.06 | 0.2 | - |
5 mg | 0.002 | 0.006 | 0.02 | 0.06 | 0.2 | - |
10 mg | 0.002 | 0.008 | 0.025 | 0.08 | 0.25 | - |
20 mg | 0.003 | 0.01 | 0.03 | 0.1 | 0.3 | - |
50 mg | 0.004 | 0.012 | 0.04 | 0.12 | 0.4 | - |
100 mg | 0.005 | 0.015 | 0.05 | 0.15 | 0.5 | 1.5 |
200 mg | 0.006 | 0.02 | 0.06 | 0.2 | 0.6 | 2 |
500 mg | 0.008 | 0.025 | 0.08 | 0.25 | 0.8 | 2.5 |
1 g | 0.01 | 0.03 | 0.1 | 0.3 | 1 | 3 |
2 g | 0.012 | 0.04 | 0.12 | 0.4 | 1.2 | 4 |
5 g | 0.015 | 0.05 | 0.15 | 0.5 | 1.5 | 5 |
10 g | 0.02 | 0.06 | 0.2 | 0.6 | 2 | 6 |
20 g | 0.025 | 0.08 | 0.25 | 0.8 | 2.5 | 8 |
50 g | 0.03 | 0.1 | 0.3 | 1 | 3 | 10 |
100 g | 0.05 | 0.15 | 0.5 | 1.5 | 5 | 15 |
200 g | 0.1 | 0.3 | 1 | 3 | 10 | 30 |
500 g | 0.25 | 0.75 | 2.5 | 7.5 | 25 | 75 |
1 kg | 0.5 | 1.5 | 5 | 15 | 50 | 150 |
2 kg | 1 | 3 | 10 | 30 | 100 | 300 |
5 kg | 2.5 | 7.5 | 25 | 75 | 250 | 750 |
10 kg | 5 | 15 | 50 | 150 | 500 | 1500 |
20 kg | 10 | 30 | 100 | 300 | 1000 | 3000 |
50 kg | 25 | 75 | 250 | 750 | 2500 | 7500 |