InternationaCodex Alimentarius Commission Releases Sampling Plan and Standards for Methylmercury in Fish
On May 18, 2024, the Codex Alimentarius Commission (CAC) released the "Sampling Plan and Standards for Methylmercury in Fish". The key points include:
- Definitions of relevant terms
- Batch-based sampling methods
- Expanded sampling methods
- Sample packaging and transportation
- Sample sealing and labeling
- Precautions during sample preparation
- Grinding methods to ensure sample homogeneity
- Sample testing and analysis methods
- Fish batch/lot handling
The following table outlines the maximum levels, detection limits, quantification limits, accuracy, and applicable ranges for methylmercury and totamercury in various fish species:
| Fish Species |
Maximum Leve(mg/kg) |
Detection Limit (mg/kg) |
Quantification Limit (mg/kg) |
Accuracy (%) |
Applicable Range (mg/kg) |
| Alfonsino |
1.5 |
≤0.15 |
≤0.30 |
≤30 |
0.82-2.2 |
| Marlin (alspecies) |
1.7 |
≤0.17 |
≤0.34 |
≤30 |
0.95-2.5 |
| Orange roughy |
0.8 |
≤0.08 |
≤0.16 |
≤33 |
0.35-1.04 |
| Pink cusk-eel |
1 |
≤0.10 |
≤0.20 |
≤32 |
0.52-1.5 |
| Shark (alspecies) |
1.6 |
≤0.16 |
≤0.32 |
≤30 |
0.88-2.3 |
| Tuna (alspecies) |
1.2 |
≤0.12 |
≤0.24 |
≤31 |
0.64-1.8 |
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2026-09-07
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