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| const_isotopic_composition | NIST isotopic composition data |
| get612conc | get612conc |
| getICS | getICS |
| getMassNumber | getSymbol |
| getNIST612 | getICS |
| getSymbol | getSymbol |
| isotopicAbundance | standardAtomicWeight |
| NIST_SRM612_GeoREM | ~~ data name/kind ... ~~ |
| relativeAtomicMass | standardAtomicWeight |
| standardAtomicWeight | standardAtomicWeight |