HFC-23 Calibration Standard Gas from Germany
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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• NIST-traceable certificates of analysis mandatory for standards
• ISO 17025 accreditation verification for calibration laboratories
• Concentration verification prevents misclassification as pure substance