Conductivity Standards

CONDUCTANAL certified reference materials are intended for the calibration of electrical conductivity measuring instruments and for the validation and verification of analytical methods for the measurement of electrical conductivity. They are produced on the basis of accredited procedures within the scope of accreditation according to EN ISO 17034. They are certified on the basis of gravimetric preparation. For the preparation of these CRMs, high purity compounds and deionized water with an electrical resistivity of ~ 18 mS.cm, filtered through a membrane filter with a pore size of 0.22 µm and saturated with nitrogen, are used. The quality of the resulting product is verified by methods in accordance with the procedures defined in EN ISO/IEC 17025.