Quality standard of Thulium Metal: Element Product Tm-1 Product Tm-2 TREM 99% 99.5% Tm/TREM 99.9% 99.99% Y 0.01% 0.001% Ho 0.01% 0.001% Er 0.02% 0.002% Yb 0.03% 0.003% Lu 0.01% 0.001% Other RE 0.02% 0.002% Fe 0.05% 0.01% Si 0.01% 0.01% Ca 0.01% 0.01% Mg 0.01% 0.005% Al 0.03% 0.01% O 0.02% 0.02% C 0.02% 0.02% Specification: Metal ingot, mechanically polished, the detailed specification can be customized in size according to your request. Packing: In sealed doubled polyethylene bags and filled with argon, the bags are packed in iron drum containing 50kgs net each. Note: We also provide customized product.