分銅の等級と最大許容誤差
分銅の等級は、分銅の持つ最大許容誤差に応じて、JIS7609:2008により定められています。
JIS B 7609:2008 による。
| 表す量 | E2級 | F1級 | F2級 | M1級 | M2級 |
| 20kg | ±30mg | ±100mg | ±300mg | ±1000mg | ±3000mg |
| 10kg | ±16mg | ±50mg | ±160mg | ±500mg | ±1600mg |
| 5kg | ±8.0mg | ±25mg | ±80mg | ±250mg | ±800mg |
| 2kg | ±3.0mg | ±10mg | ±30mg | ±100mg | ±300mg |
| 1kg | ±1.6mg | ±5.0mg | ±16mg | ±50mg | ±160mg |
| 500g | ±0.8mg | ±2.5mg | ±8.0mg | ±25mg | ±80mg |
| 200g | ±0.3mg | ±1.0mg | ±3.0mg | ±10mg | ±30mg |
| 100g | ±0.16mg | ±0.50mg | ±1.6mg | ±5.0mg | ±16mg |
| 50g | ±0.10mg | ±0.30mg | ±1.0mg | ±3.0mg | ±10mg |
| 20g | ±0.08mg | ±0.25mg | ±0.80mg | ±2.5mg | ±8.0mg |
| 10g | ±0.06mg | ±0.20mg | ±0.60mg | ±2.0mg | ±6.0mg |
| 5g | ±0.05mg | ±0.16mg | ±0.50mg | ±1.6mg | ±5.0mg |
| 2g | ±0.04mg | ±0.12mg | ±0.40mg | ±1.2mg | ±4.0mg |
| 1g | ±0.03mg | ±0.10mg | ±0.30mg | ±1.0mg | ±3.0mg |
| 500mg | ±0.025mg | ±0.080mg | ±0.25mg | ±0.80mg | ±2.5mg |
| 200mg | ±0.020mg | ±0.060mg | ±0.20mg | ±0.60mg | ±2.0mg |
| 100mg | ±0.016mg | ±0.050mg | ±0.16mg | ±0.50mg | ±1.6mg |
| 50mg | ±0.012mg | ±0.040mg | ±0.12mg | ±0.40mg | - |
| 20mg | ±0.010mg | ±0.030mg | ±0.10mg | ±0.30mg | - |
| 10mg | ±0.008mg | ±0.025mg | ±0.080mg | ±0.25mg | - |
| 5mg | ±0.006mg | ±0.020mg | ±0.060mg | ±0.20mg | - |
| 2mg | ±0.006mg | ±0.020mg | ±0.060mg | ±0.20mg | - |
| 1mg | ±0.006mg | ±0.020mg | ±0.060mg | ±0.20mg | - |