Automatic pH Control System for Water Treatment from Mexico
An integrated apparatus that continuously measures pH levels in water and automatically dispenses acid or base to maintain target values in industrial treatment plants. Classified under HTS 9032.89.60.85 for other automatic regulators of non-electrical quantities like chemical concentration. It stabilizes process variables through periodic measurement and adjustment.
Duty Rate — Mexico → United States
11.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide chemical compatibility certifications and flow diagrams to prove automatic dosing function
• Ensure EPA-equivalent compliance docs for environmental controls to speed clearance