Laboratory Mullite Electrical Insulators from Canada
Mullite (3Al2O3·2SiO2) ceramic standoffs and tubes for laboratory high-voltage testing equipment and spark testers. Excellent arc resistance and machinability. HTS 8546.20.00.90 classification.
Duty Rate — Canada → United States
13%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include mullite purity (>99%) and volume resistivity (>10^14 ohm-cm) data
• Specify surface finish (Ra < 0.8μm) for high-voltage applications