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2844.43.00.28/Promethium-147 Ceramic Dispersion/Japan

Promethium-147 Ceramic Dispersion from Japan

Promethium-147 dispersed in ceramic matrix for beta batteries and thickness gauges, under 2844.43.0028 as dispersion containing radioactive isotope (atomic no. 61). Specific activity >74 Bq/g.

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 as LSA-I (low specific activity); perform 100% leak testing per ANSI N13.4; maintain 10-year sealed source registry