| Answer | Crossword Clue |
|---|---|
| ASSAY | Test for purity |
| ASSAY | Test for purity, as gold |
| ASSAY | Test, as for a metal's purity |
| ASSAY | Purity test |
| ASSAY | Rate for purity |
| ASSAYED | Checked for purity |
| ASSAY | Examine for purity |
| ORES | Subjects of tests for purity |
| IVORYSOAP | Cake known for its nearly perfect purity |
| karats | 1/24 part: a unit for measuring the purity of gold |
| karat | 1/24 part: a unit for measuring the purity of gold |
| lactoscope | an instrument for measuring the purity or richness of milk |
| lactoscopes | LACTOSCOPE, an instrument for measuring the purity or richness of milk |
