> 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/item-register/vials-flasks-and-liquids/qc-stock-1-ml.md).

# QC stock (1 mL)

{% columns %}
{% column %}

<figure><img src="/files/JgYwJIxcVhs3YbtDfYXa" alt=""><figcaption><p>QC stock (1 mL)</p></figcaption></figure>

<a href="mailto:sales@sbtinstruments.com" class="button primary" data-icon="envelope">Contact SBT to purchase</a>
{% endcolumn %}

{% column %}
:label: Individual item number `50056`

:label: Bundled as `QC04` and `QC05`

:droplet: Contains **1 mL**

:thermometer: Store upright at room temperature

:thermometer: Do not freeze

<img src="/files/W3zZusDuTFS3gD1VaF1f" alt="" data-size="line"> Expires **1 year** from production date

{% hint style="info" %}
**Not sold individually**
{% endhint %}

{% hint style="info" %}
Comes with a Certificate of Analysis (CoA)
{% endhint %}
{% endcolumn %}
{% endcolumns %}

<table><thead><tr><th width="100">Item no.</th><th width="106" data-type="number">Quantity</th><th>Note</th></tr></thead><tbody><tr><td><code>QC04</code></td><td>5</td><td></td></tr><tr><td><code>QC05</code></td><td>2</td><td></td></tr><tr><td><a data-footnote-ref href="#user-content-fn-1">DIY</a></td><td>null</td><td><mark style="color:$danger;background-color:$danger;">Not recommended</mark><br><mark style="color:$info;">DIY QC stock may not be precise enough for use in the QC test.</mark></td></tr></tbody></table>

## Use cases

Use to [make a DIY QC vial](/getting-started/qc-test/make-qc-vial.md). In turn, use the QC vial to [perform a QC test](/getting-started/qc-test.md).

Perform a [QC test](https://github.com/sbtinstruments/docsites/blob/main/help/getting-started/qc-test/README.md) in these cases:

* **At least once a week.**
* After a [deep clean](https://github.com/sbtinstruments/docsites/blob/main/help/best-practices/maintenance/deep-clean-1/README.md) (of any length).
* When you change your BactoBox® setup.\ <mark style="color:$info;">Example: You replace the flow cell.</mark>\ <mark style="color:$info;">Example: You replace the external filter.</mark>\ <mark style="color:$info;">Example: You replace the tubing kit.</mark>
* When you switch from the SBT dilution vial to the [DIY dilution vial](/advanced/do-it-yourself-diy/diy-dilution-dispenser.md).
* As part of [qualification](https://github.com/sbtinstruments/docsites/blob/main/help/getting-started/qualification.md).

## GHS

<table><thead><tr><th width="121">GHS pictogram</th><th>GHS hazard statement(s)</th></tr></thead><tbody><tr><td><img src="/files/GG9LmOg1N54u2uoKmonv" alt=""></td><td>H225 Highly flammable liquid and vapor.</td></tr><tr><td><img src="/files/1Scwio2VJCk5MbogVKQw" alt="" data-size="original"></td><td>H319 Causes serious eye irritation.<br>H336 May cause drowsiness or dizziness.</td></tr></tbody></table>

## Safety data sheet (SDS)

{% file src="/files/5pasPsJey11i1CM6R7eB" %}
English
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{% file src="/files/SlFcdEoMxR0zcvHuQcSw" %}
Deutsch
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{% file src="/files/b0b8xieuMijiqEyXpvDb" %}
Dansk
{% endfile %}

{% file src="/files/04xW0fqddvGmGOSLb2Fi" %}
Italiano
{% endfile %}

[^1]: Do it yourself


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