Complete confidence You can t afford to take chances with quality. You need to be sure that the solutions you use are certified and fully traceable to national standards. Only an officially accredited laboratory can give you complete confidence in your solutions. This accreditation is recognised in more than 35 countries. What greater assurance can you ask for? 4 pages

METERLAB from RADIOMETER ANALYTICAL incorporates all elements of the measuring chain - pH, ion and conductivity meters, electrodes and conductivity cells, solutions and sample handling - ensuring totally reliable measurements in the laboratory and in the field. All elements are designed to make operation simple and error-free. Overview: the right electrode for your application; combined pH electrodes; reference electrodes; glass pH electrodes; metal electrodes; ion-selective electrodes; conductivity cells; solutions for calibration and maintenance; accessories; 20 pages

Authors: Dr. Axel Bier and Bernd Seidl (HACH LANGE GmbH), Marlies Schrons (agency vitatext). One of the most frequently measured parameters is pH and regularly calibrated pH measurement sensors are necessary. The certified buffer solutions from HACH LANGE calibration laboratory offer the assurance of accurate calibration backed up by the guaranteed shelf life of the IUPAC standards. Special packaging technology makes the sealed solutions stable and ready to use for up to four years. 4 pages