Digital Surface Tension Tester from Canada
Compact device using the Du Noüy ring method to measure surface tension of liquids in industrial quality control for inks, coatings, and chemicals. Falls under HTS 9027.89.80.90 as an apparatus for measuring surface tension. Delivers precise mN/m readings with automatic temperature compensation.
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
• Provide method certification (e.g
• ASTM D971 compliance) in technical documentation
• Declare ring material and precision specs to prevent classification as basic lab ware
• Separate from weighing scales to avoid parts classification under 8423