> For the complete documentation index, see [llms.txt](https://help.sbtinstruments.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.sbtinstruments.com/getting-started/run-your-first-qc-test.md).
# Run your first QC test
Check that BactoBox® measures correctly before your first sample.
Run a QC test before you measure your first sample. It shows that BactoBox® works after installation. Your BactoBox® does not measure on a new flow cell until it passes a QC test. See [QC test](/maintenance/qc-test.md) for when to run one after that.
## Which QC item do you have?
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