pH buffer solution Back Catalog number: 18901165 Manufacturer: DLAB Availability: In the manufacturer's stock Price (VAT incl.) 16,37 € 13,53 € - + Recommended 18901184 DREF03 Reference electrode 40,60 € SN-01R Ampoule opener 54,82 € 18901199 PH4.00 500mL 4.00pH, one bottle 19,90 €