All Solutions according to DIN Methods 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 | Tetracyclohexyltin CAS:1449-55-4 EC:215-910-5 | EUR 61.73 |
| 1x | Ammonia Buffer pH 10.0 | EUR 68.00 |
| 1x | 2-Methylbutyric acid [CAS:116-53-0] | EUR 34.30 |
| 3x | Discount for non-paper Certificate of Analysis | EUR -3.00 |