The physicochemical value reproduced by the standard is specific electrolytic conductivity  ĸ. It is expressed in the SI units: S/m. The values of certified specific electrolytic conductivity are traceable to the DFM's (Danish Fundamental Metrology) and GUM's (Central Office of Measures in Poland) standards. Conductometric standards are distributed in 100 cm3, 250 cm3 and  500 cm3 packages, and are designed for the determination of the conductivity cell constant for the measurement  of the electrolytic conductivity.

konduktometryczne

 

LIST OF CONDUCTOMETRIC STANDARDS

No  

TYPE

Nominal specific electrolytic conductivity  ĸ

(25oC)
S.m-1

Expanded uncertainty

(k=2)
%

1

BLS 009K.001

0,01

0,4 

2

BLS 009K.005

0,05

0,4 

3

BLS 009K.010

0,1

0,4 

4

BLS 009K .015

0,15

0,4 

5

BLS 009K.050

0,5

0,4 

6

BLS 009K.100

1,0 

0,4

7

BLS 009K.500

5,0 

0,4

8

BLS 009K.1000

10,0

0,4

We produce reference materials with non-standard values (other than in the table above) falling within the range (0.008 ÷ 12.0) S/m on special order.

The CRM conductivity certificate is issued as a reference material certificate confirming its metrological properties including PCA accreditation symbols, that confirm compliance with the requirements of ISO 17034 for manufacturers of reference materials.

For conductivity reference materials, a reference material certificate can be issued for compliance with ISO 17025, which shows metrological properties with PCA accreditation symbols based on the signatory status of multilateral EA-MLA and ILAC-MRA agreements on mutual recognition of calibration certificates.

CALIBRATION LABORATORY ACCREDITED by Polish Centre for Accreditation, a signatory to EA MLA and ILAC MRA that include recognition of calibration certificates. The laboratory meets the requirements of standard PN-EN ISO/IEC 17025.

 

Our certificates

PRODUCER CERTIFIELD REFERENCE MATERIALS (CRMs) ACCREDITED by Polish Centre for Accreditation. The laboratory meets the requirements of standard ISO 17034.

 

RM002

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