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HFC-227ea Calibration Gas Standard from Canada

Certified reference HFC-227ea gas mixtures at ppb/ppm levels in nitrogen balance for atmospheric monitoring and gas chromatography calibration. Pure component classified under HTS 2903.46.10.00 with trace analysis certificate. NIST-traceable concentration verification.

Duty Rate — Canada → United States

13.7%

Rate breakdown

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

Import Tips

Certificate of analysis with uncertainty budget (<2% relative) required

Cylinder pressure test certification (DOT-3AA) mandatory for calibration gases

Shelf life expiration dates must be current for reference standards