標準砝碼允差表 OIML是「法定度量衡組織（International Organization for Legal Metrology）」的法文簡稱，成立于九五五年，其宗旨在提供并促各法定度量衡系統及量測儀器有個共同的基礎。
等級 重量 | E1 (±mg) | E2 (±mg) | F1 (±mg) | F2 (±mg) | M1 (±mg) | M2 (±mg) | M3 (±mg) | 1mg | 0.002 | 0.006 | 0.020 | 0.06 | 0.2 | - | - | 2mg | 0.002 | 0.006 | 0.020 | 0.06 | 0.2 | - | - | 5mg | 0.002 | 0.006 | 0.020 | 0.06 | 0.2 | - | - | 10mg | 0.002 | 0.008 | 0.025 | 0.08 | 0.25 | - | - | 20mg | 0.003 | 0.010 | 0.03 | 0.10 | 0.3 | - | - | 50mg | 0.004 | 0.012 | 0.04 | 0.12 | 0.4 | - | - | 100mg | 0.005 | 0.015 | 0.05 | 0.15 | 0.5 | 1.5 | - | 200mg | 0.006 | 0.020 | 0.06 | 0.20 | 0.6 | 2.0 | - | 500mg | 0.008 | 0.025 | 0.08 | 0.25 | 0.8 | 2.5 | - | 1g | 0.010 | 0.030 | 0.10 | 0.3 | 1.0 | 3 | 10 | 2g | 0.012 | 0.040 | 0.12 | 0.4 | 1.2 | 4 | 12 | 5g | 0.015 | 0.050 | 0.15 | 0.5 | 1.5 | 5 | 15 | 10g | 0.020 | 0.060 | 0.20 | 0.6 | 2.0 | 6 | 20 | 20g | 0.025 | 0.080 | 0.25 | 0.8 | 2.5 | 8 | 25 | 50g | 0.030 | 0.10 | 0.30 | 1.0 | 3.0 | 10 | 30 | 100g | 0.05 | 0.15 | 0.5 | 1.5 | 5 | 15 | 50 | 200g | 0.10 | 0.30 | 1.0 | 3.0 | 10 | 30 | 100 | 500g | 0.25 | 0.75 | 2.5 | 7.5 | 25 | 75 | 250 | 1kg | 0.50 | 1.5 | 5 | 15 | 50 | 150 | 500 | 2kg | 1.0 | 3.0 | 10 | 30 | 100 | 300 | 1000 | 5kg | 2.5 | 7.5 | 25 | 75 | 250 | 750 | 2500 | 10kg | 5 | 15 | 50 | 150 | 500 | 1500 | 5000 | 20kg | 10 | 30 | 100 | 300 | 1000 | 3000 | 10000 | 50kg | 25 | 75 | 250 | 750 | 2500 | 7500 | 25000 |
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