Standard abbreviations
| HS | High signal |
| LS | Low signal |
| NO | No signal |
| SD | Signal drop |
| SS | Signal stop |
| DS | Double signal |
| DB | Double signal at the start |
| DE | Double signal at the end |
| EC | Echo signal after a stretch |
| BP | Broad peaks at the end |
| BG | Background signal |
| SP | Spike in the sequence |
| ST | Stretch in the sequence |
| R | reaction will be repeated |
| X | reaction will not be repeated |