Paragraph 2
Boron (CAS 7440-42-8) or boron carbide (CAS 12069-32-8) fuels of 85% purity or higher and particle sizes of less than 60μm;
except: boron and boron carbide enriched with boron-10 (20% or more of total boron-10 content);
Boron (CAS 7440-42-8) or boron carbide (CAS 12069-32-8) fuels of 85% purity or higher and particle sizes of less than 60μm;
except: boron and boron carbide enriched with boron-10 (20% or more of total boron-10 content);