Barometer Evacuation Valve Assembly from Canada
Precision valve assembly for evacuating and sealing aneroid barometer capsules. Maintains partial vacuum for pressure sensitivity. Classified HTS 9025.90.06.00 as specialized barometer assembly tool.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Prove manufacturing process integration for principal use determination
• Specify vacuum rating (10^-3 torr) for instrument quality control
• Avoid 8481 valve classification with process-specific evidence