Porosity Tester for Films from Canada
Benchtop apparatus using gas flow method to quantify porosity in plastic films, membranes, and filters for packaging industry. Under HTS 9027.89.80.90 for measuring porosity. Provides Gurley seconds or Frazier cfm metrics.
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
• Document applicable standards (ASTM D726, ISO 5636) for customs verification
• Distinguish from simple pressure testers lacking quantitative gas flow measurement
• Invoice as complete porosity measurement system, not film holder accessory