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3827.51.00.00/HFC-23 Calibration Standard Gas/Japan

HFC-23 Calibration Standard Gas from Japan

Certified reference mixture containing known HFC-23 concentrations for environmental monitoring equipment calibration. Classifies under HTS 3827.51.00.00 as it features trifluoromethane without ozone-depleting substances.

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

• NIST-traceable certificates of analysis mandatory for standards

• ISO 17025 accreditation verification for calibration laboratories

• Concentration verification prevents misclassification as pure substance

HFC-23 Calibration Standard Gas from Japan — Import Duty Rate | HTS 3827.51.00.00