9027.90.64.00/Nephelometer Photomultiplier Housing/Mexico

Nephelometer Photomultiplier Housing from Mexico

Light-tight aluminum housings for PMT detectors in nephelometric turbidity meters (9027.30 optical). Magnetic shielding reduces interference in low-level light detection. Critical optical component under 9027.90.64.00.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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Import Tips

• Certify magnetic shielding effectiveness (>60dB) and light leak rates

• Include PMT socket specifications and high-voltage insulator ratings

• Specify nephelometer model and scattering angle compatibility