Nephelometer Photomultiplier Housing from Canada
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 — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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