# Updated guidance for using new blue Infinium Staining Set
## **New Infinium Staining Set (Staining Rack and Wash Dish)**
Due to discontinuation from the supplier, a new Staining Rack and Wash Dish set are now included in the Infinium Starter Kits ([Infinium Staining Set catalog number WG-10-207)](https://www.illumina.com/products/by-type/accessory-products/infinium-staining-set-staining-rack-wash-dish.html).
**Figure 1: Infinium Staining Set.**
**Figure 2: Infinium staining rack comparison.**
## **Infinium Staining Set Fill Volumes according to Batch Size**
Do not rely on the 250 ml fill line that comes on the reservoir as this is not enough volume.
310 ml may overflow with high numbers of BeadChips in the staining rack due to increased displacement.
| **Number of BeadChips** | **Volume of XC4 needed** |
| ----------------------- | ------------------------ |
| 4 | 283 ml |
| 8 | 276 ml |
| 12 | 270 ml |
| 16 | 266 ml |
| 20 | 263 ml |
| 24 | 250 ml |
**Figure 3: Infinium Staining Set fill volume.**
## **Guidance for placing the staining set**
**Figure 4: Correct way to place the new staining rack without toppling.**
**Figure 5: Incorrect way to place the new staining rack.**
**Figure 6: Use care when holding new staining rack by the handle as the handle is small.**
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| *For any feedback or questions regarding this article (Illumina Knowledge Article #9390), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000009390%20-%20Microarray%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |
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