HFC-227ea Dielectric Test Gas from Canada
HFC-227ea used for high-voltage dielectric strength testing of electrical switchgear and transformers. Pure compound under HTS 2903.46.10.00 with >45 kV/cm breakdown voltage. Non-corrosive to copper and aluminum contacts.
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
• Dielectric strength certification per ASTM D2477 standards required
• Moisture content (<10 ppm) critical for high-voltage applications
• Cylinder valve compatibility testing for SF6 replacement gases