Portable Electrical Refractive Index Meter from Mexico
Electrical digital refractometer measuring refractive index of liquids for food and chemical labs. Under HTS 9027.89.45.90 as other electrical physical analysis instrument (refractometers specified in heading). Uses LED light source.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• ATC (automatic temperature compensation) specs prevent thermometer confusion
• Provide RI vs concentration tables for end use
• Clean optics certification for accuracy claims