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Gadolinium-148 Oxide from Japan

Gadolinium-148 oxide compound provides intense neutron emission for calibration and weapons effects testing. Classified under HTS 2844.42.00.00 as a compound of the specifically named Gadolinium-148 isotope. Long half-life makes it valuable for standards.

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%

Import Tips

Submit detailed neutron emission spectra; reference NIST standard if applicable

Encapsulate in gold/rhenium matrix; provide criticality safety analysis