| Element (max.ppm) | Grade 99.90 (UNS P07020) | Grade 99.95 (UNS P07015) | Grade 99.99 (UNS P07010) | SEKOM typical |
| Ag (% min.) | 99.90% | 99.95% | 99.99% | 99.995% |
Ag+Cu (% min.) |
99.95% | - | - | - |
| Au | <2 | |||
| Bi | 10 | 10 | 5 | <1 |
| Cu | 800 | 400 | 100 | 30-45 |
| Fe | 20 | 20 | 10 | <5 - 10 |
| Pb | 250 | 150 | 10 | <2 |
| Pd | - | - | 10 | <5 |
| Se | - | - | 5 | <5 |
| Te | - | - | 5 | <5 |