9027.90.64.00/Nephelometer Photomultiplier Housing/Japan

Nephelometer Photomultiplier Housing from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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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