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1.1 ,These test methods cover cupellation analysis of bullion having chemical compositions within the following limits:
| , ,Element | ,Concentration Range, % |
| , | , |
| Gold | 0.5 to 4.0 and 20.0 to 99.8 |
| Silver | 1.0 to 99.5 |
| Total gold plus silver | 75.0 to 100.0 |