Chromium Hollow Cathode Lamp Electrode from Mexico
Cylindrical chromium cathode for atomic absorption spectroscopy lamps. Hollow structure fills with argon; HTS 8112.29.00.00. Spectral line 357.9nm.
Duty Rate — Mexico → United States
3%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Spectral purity >99.5% at characteristic wavelength required
• Vacuum integrity test certificates essential
• Classify as lamp part vs complete instrument