ORP buffer solutions in FIOLAX® ampoules or DURAN® glass bottlesORP buffer solutions have a defined ORP potential and are used to calibrate and test ORP measuring devices/ORP electrodes. An ORP buffer solution consists of an oxidation and a reduction component in a defined concentration. This concentration creates a constant redox state.ORP buffer solutionsVariantsmVMengeL 4619180 mV, 220 mV Pt/Ag/AgCl (DIN 38404-C6)60 FIOLAX® ampoules (17 ml each)L 4643430 mV, 470 mV Pt/Ag/AgCl60 FIOLAX® ampoules (17 ml each)L 4660600 mV, 640 mV Pt/Ag/AgCl60 FIOLAX® ampoules (17 ml each)L 4304470 mV Pt/Ag/AgCl250 ml DURAN® glass bottleL 430470 mV Pt/Ag/AgCl1000 ml DURAN® glass bottle#### FIOLAX® ampoules:Buffer solutions in the unique double-end ampoules offer a particularly high degree of reliability and measurement accuracy. The accuracy of a measurement depends entirely on the accuracy of the calibration. This, in turn, depends to a very large extent on the reliability of the buffers. Hermetically sealed into the glass ampoule like a pharmaceutical preparation and hot steam sterilized, the buffer solutions contain no preservatives, have an extremely long shelf life, and guarantee consistently authentic properties. The ampoules can be easily opened at the predetermined breaking point without tools. Since refilling is not possible, they always guarantee maximum calibration reliability.Advantages of double-end ampoules:- Maximum reliability and measurement accuracy- Extremely long shelf life thanks to hot steam sterilization- No preservatives- Maximum calibration reliability