Certified Reference Material NIST SRM 1950
NIST Standard Reference Material 1950 containing certified concentrations of metabolites in human serum for calibration of clinical analyzers. Classified under HTS 3822.19.0080 as certified reference materials used as laboratory standards.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +10.0% | 10% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If prepared for direct therapeutic/clinical use
Medicinal preparations of biological origin fall under Chapter 30.
If non-certified control materials
Uncertainty-certified standards vs quality control materials without NIST traceability.
If for instrument-specific calibration solutions
Reference materials integral to measuring instruments classify as parts thereof.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include NIST certificate of analysis and uncertainty values in customs declaration
• Declare exact certified analyte concentrations to avoid reclassification as biological specimens
• Verify chain of custody documentation for reference material integrity
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