All High Purity Compounds are Certified Reference Materials, produced and calibrated under CPAchem's quality system that is:
- ISO 9001 certified.
- accredited according to ISO/IEC 17025 - Testing
- accredited according to ISO/IEC 17034 - Reference Material Producer
| 1x | Phosphate Buffer pH 7.4 | EUR 68.00 |
| 1x | Ammonium iron (III) sulfate TS | EUR 35.00 |
| 1x | Dilute bismuth subnitrate-potassium iodide TS for... | EUR 76.00 |
| 3x | Discount for non-paper Certificate of Analysis | EUR -3.00 |