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2901.10.10.00/Butane Reference Fuel RM-1/Japan

Butane Reference Fuel RM-1 from Japan

Certified reference butane (iso-butane/n-butane blend) for automotive engine testing per ASTM D1837. Pure hydrocarbon standard under HTS 2901.10.10.00. Supplied in pressure cylinders with NIST traceability.

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

• ASTM specification docs; octane rating certificate; specify test fuel use to avoid Chapter 27