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| Code | Description | Items |
|---|---|---|
| 540 | Chemistry & allied sciences | 2 |
| 541 | Physical & theoretical chemistry | 0 |
| 542 | Techniques, equipment, materials | 0 |
| 543 | Analytical chemistry | 0 |
| 544 | Qualitative analysis | 0 |
| 545 | Quantitative analysis | 0 |
| 546 | Inorganic chemistry | 0 |
| 547 | Organic chemistry | 0 |
| 548 | Crystallography | 1 |
| 549 | Mineralogy | 4 |