Borosilicate Glass Labware Cullet from Japan
Crushed rejects from Pyrex-style lab beakers and tubes, high-silica content glass scrap. HTS 7001.00.51.00 captures this as other glass in mass, valued for thermal resistance in remelt.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Certify SiO2 >80% for borosilicate; distinguishes from soda-lime duties
• Avoid mixing with container glass; thermal expansion mismatch ruins batches
• Biohazard protocols if from lab discard; sterilization docs mandatory