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 | Acetate Buffer pH 2.8 | EUR 68.00 |
| 1x | PCB 159 [CAS:39635-35-3] 500ug/ml in Iso-octane | EUR 53.00 |
| 2x | Отстъпка за безхартиено копие на Сертификат за анализ | EUR -2.00 |