Our services in the calibration laboratory for electrolytic conductivity

Based on our long-time experiences we offer accredited calibration services for the measuring quantity electrolytic conductivity according to ISO/IEC 17025 with DAkkS calibration certificate and according to ISO 17034 with reference material certificate.

In our calibration laboratory we apply three internationally approved calibration procedures for realization of traceability of electrolytic conductivity.

• Primary method with differential cell constant (own development) – in development
• Secondary method with standard measuring cells (Jones type)
• Calibration in comparison with reference solutions with high-quality conductivity meters and 2-pole / 4-pole measuring cells

Metrological hierarchy for electrolytic conductivity

The validation of the calibration procedures is realized by successful participation in international comparison measurements.

Our range of services includes:

Certified reference solutions (CRM) for electrolytic conductivity

• According to ISO 17034
• with reference material certificate
• nominal values: 147 µS/cm, 1413 µS/cm, 12.88 mS/cm and 111.8 mS/cm (reference temperature 25 °C)

Reference solutions for electrolytic conductivity

• with DAkkS calibration certificate
• Measuring range: 1.3 µS/cm to 150 mS/cm (reference temperature 25 °C)

Our concrete range of services for reference solutions for electrolytic conductivity, including the extended measurement uncertainties, can be found in our current price list for electrolytic conductivity and our price list for CRM.

Determination of electrolytic conductivity of unknown solutions of potassium chloride

We measure your liquid samples with DAkkS calibration certificate depending on agreed specific conditions.

Calibration of conductivity meters

We calibrate for you conductivity meters of all manufacturers:

• with DAkkS calibration certificate
• Measuring range: 1,3 µS/cm to 150 mS/cm (reference temperature 25 °C)

On customer request, we realize special temperatures for the entire range of services.

We also calibrate your conductivity meters directly on-site in your workspaces and facilities, depending on the technical requirements, according to accredited calibration procedures (DAkkS):

Our complete range of services according to ISO/IEC 17025, including expanded measuring uncertainties, can be found in the Annex to accreditation certificate (D-K-15186-01-02).

For our certified reference materials according to ISO 17034 you can find our range of services in the Annex to accreditation certificate (D-RM-15186-01-00).