Borosilicate Condensate Trap Tubes from Japan
Unworked borosilicate glass tubes designed for cold traps in vacuum distillation systems. Their low linear coefficient of expansion (≤5 x 10⁻⁶/K from 0°C to 300°C) ensures resistance to thermal shock during repeated cycling. These tubes are classified under tariff item 7002.32.00 as unworked glass tubes of low-expansion glass.
Duty Rate — Japan → Canada
0%
Import Tips
• Ensure the tubes are unworked (no cutting, bending, or polishing) to qualify for this tariff item
• Provide a lab analysis certificate confirming the coefficient of expansion ≤5 x 10⁻⁶/K
• Declare the end-use as laboratory or scientific equipment to avoid misclassification