The following solutions are used as reference standards in limit tests.
| 1x | Conductivity Standard 300000 uS/cm at 25 C | EUR 83.00 |
| 1x | BDE 28 CAS:41318-75-6 | EUR 96.90 |
| 1x | Aromatic Hydrocarbons Mixture 16 components (EPA ... | EUR 57.00 |
| 3x | Discount for non-paper Certificate of Analysis | EUR -3.00 |