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3827.51.00.00/HFC-23 Calibration Standard Gas/Canada

HFC-23 Calibration Standard Gas from Canada

Certified reference mixture containing known HFC-23 concentrations for environmental monitoring equipment calibration. Classifies under HTS 3827.51.00.00 as it features trifluoromethane without ozone-depleting substances.

Duty Rate — Canada → United States

13.7%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• NIST-traceable certificates of analysis mandatory for standards

• ISO 17025 accreditation verification for calibration laboratories

• Concentration verification prevents misclassification as pure substance

HFC-23 Calibration Standard Gas from Canada — Import Duty Rate | HTS 3827.51.00.00