company news about What are the technical specifications for high-purity tin ingots?

 What are the technical specifications for high-purity tin ingots?

1. 1.
   ​​Standard High Purity:​​
   • •
     Sn ≥ 99.90% (ASTM Grade A+)
   • •
     Impurity Limits:
     • •
       Pb ≤ 0.01%
     • •
       As/Sb/Bi ≤ 0.005%
     • •
       Fe/Cu ≤ 0.002%
2. 2.
   ​​Premium High Purity:​​
   • •
     Sn ≥ 99.95%
   • •
     Additional controls for:
     • •
       Oxygen ≤ 10ppm
     • •
       Zn/Ni ≤ 0.001%
3. 3.
   ​​Ultra High Purity:​​
   • •
     Sn ≥ 99.99% (5N)
   • •
     Trace metal analysis required:
     • •
       Ag, Cd, In ≤ 0.0001%
   • •
     Achieved through:
     • •
       Triple electrolytic refining
     • •
       Zone melting purification

• •
  ICP-MS/ICP-OES test reports
• •
  Third-party lab verification (SGS)

• •
  Inert atmosphere processing
• •
  Low-oxygen packaging
• •
  Critical cleaning procedures
•