Reference pH Buffer 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/IEC 17034 - Reference Material Producer
| 1x | 1-Methyl-1H-benzotriazole CAS:13351-73-0 EC:236-4... | EUR 46.20 |
| 1x | mono-Butyl phthalate CAS:131-70-4 EC:205-036-2 | EUR 46.58 |
| 1x | Butyl-n-decyl phthalare (technical) CAS:89-19-0 E... | EUR 76.53 |
| 3x | Discount for non-paper Certificate of Analysis | EUR -3.00 |