Mass Spectrometer Vacuum Gauge Calibration Standard from China
Precision calibration artifact specifically designed for verifying ionization vacuum gauges in mass spectrometers admitted under 9810.00.60. Provides traceable standards from 10^-9 to 10^-3 Torr range. Essential for maintaining instrument vacuum system integrity in proteomics research.
Duty Rate — China → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include mass spectrometer specifications showing vacuum requirements
• Provide NIST traceability certification for calibration standards
• Document research protocols requiring instrument verification