All Conductivity Standard Solutions 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 17034 - Reference Material Producer
| 1x | PCB 132 CAS:38380-05-1 | EUR 105.66 |
| 1x | Zinc standard (20 ug/ml Zn) TS | EUR 61.00 |
| 1x | Citro-phosphate Buffer pH 6.0 (acc. to Ph Eur) | EUR 68.00 |
| 3x | Отстъпка за безхартиено копие на Сертификат за анализ | EUR -3.00 |