Results for: Physikalisch-Technische Bundesanstalt
Filters
CMC Quick search Filters close;
?
Added keywords act as an additional filter. Keywords separated by a space will be treated by the logical function AND automatically. You may also use OR. Keyword searches also find close matches. Placing quotation marks (") before and after the search word, e.g. "word", will allow for exact matches.

In case of multiple search, please use ADVANCED SEARCH.
1121 results
Reset all
CMC Area
To filter, either use the tick boxes or click on the underscored item
Geographical location
In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a 2 + b 2]1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)
Germany, PTB (Physikalisch-Technische Bundesanstalt)
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
pH in Absolute expanded uncertainty in pH in
aqueous pH buffer solution 3.1 to 4.1 2.0E-3 to 3.0E-3
  • Mechanism for measurement service delivery : Primary measurement of Tartrate buffer
  • Temperature range 5 °C to 50°C ( sat. Tartrate buffer from 25 °C to 50 °C); Data given for 25°C , Declared uncertainties do not include the uncertainty contribution due to the Bates-Guggenheim convention
  • Approved on 15 October 2019
  • Institute service identifier : ptb-QM-pH-2
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
pH in Absolute expanded uncertainty in pH in
aqueous pH buffer solution 9.5 to 10.5 3.0E-3 to 4.0E-3
  • Mechanism for measurement service delivery : Primary measurement of Carbonate buffer buffer
  • Temperature range 5°C to 50°C; Data given for 25°C , Declared uncertainties do not include the uncertainty contribution due to the Bates-Guggenheim convention
  • Approved on 15 October 2019
  • Institute service identifier : ptb-QM-pH-8
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
pH in Absolute expanded uncertainty in pH in
aqueous pH buffer solution 8.7 to 9.7 2.0E-3 to 3.0E-3
  • Mechanism for measurement service delivery : Primary measurement of Borate buffer
  • Temperature range 5°C to 50°C; Data given for 25°C , Declared uncertainties do not include the uncertainty contribution due to the Bates-Guggenheim convention
  • Approved on 15 October 2019
  • Institute service identifier : ptb-QM-pH-6
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
Electrolytic conductivity in mS/m Absolute expanded uncertainty in mS/m Electrolytic conductivity in Absolute expanded uncertainty in
aqueous solutions, mixed solvent 0.2 to 1.5 2.0E-3 to 4.5E-3
  • Mechanism for measurement service delivery : Calibration of reference solutions
  • Temperature range 15 °C to 35 °C
  • Approved on 28 June 2018
  • Institute service identifier : ptb-QM-con-1
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
Electrolytic conductivity in S/m Absolute expanded uncertainty in S/m Electrolytic conductivity in Absolute expanded uncertainty in
aqueous solutions, mixed solvent 0.15 to 1.5 6.0E-5 to 6.0E-4
  • Mechanism for measurement service delivery : Calibration of reference solutions
  • Temperature range 15 °C to 35 °C
  • Approved on 28 June 2018
  • Institute service identifier : ptb-QM-con-4
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
Electrolytic conductivity in mS/m Absolute expanded uncertainty in mS/m Electrolytic conductivity in Absolute expanded uncertainty in
aqueous solutions, mixed solvent 15 to 150 7.5E-3 to 7.5E-2
  • Mechanism for measurement service delivery : Calibration of reference solutions
  • Temperature range 15 °C to 35 °C
  • Approved on 28 June 2018
  • Institute service identifier : ptb-QM-con-3
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
Electrolytic conductivity in µS/cm Absolute expanded uncertainty in µS/cm Electrolytic conductivity in % Absolute expanded uncertainty in %
aqueous solution 0.055 to 150 2.6E-4 to 0.7
  • Mechanism for measurement service delivery : Calibration of inline conductivity sensors
  • Service provided at 25 °C
  • Approved on 22 June 2021
  • Institute service identifier : ptb-QM-con-6
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
Electrolytic conductivity in S/m Absolute expanded uncertainty in S/m Electrolytic conductivity in Absolute expanded uncertainty in
aqueous solutions, mixed solvent 1.5 to 25 1.0E-3 to 1.8E-2
  • Mechanism for measurement service delivery : Calibration of reference solutions
  • Temperature range 15 °C to 35 °C
  • Approved on 28 June 2018
  • Institute service identifier : ptb-QM-con-5
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
pH in Absolute expanded uncertainty in pH in
aqueous pH buffer solution 1.2 to 2.2 2.0E-3 to 3.0E-3
  • Mechanism for measurement service delivery : Primary measurement of Tetraoxalate buffer
  • Temperature range 5°C to 50°C; Data given for 25°C , Declared uncertainties do not include the uncertainty contribution due to the Bates-Guggenheim convention
  • Approved on 15 October 2019
  • Institute service identifier : ptb-QM-pH-1
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
Electrolytic conductivity in mS/m Absolute expanded uncertainty in mS/m Electrolytic conductivity in Absolute expanded uncertainty in
aqueous solutions, mixed solvent 1.5 to 15 9.0E-4 to 9.0E-3
  • Mechanism for measurement service delivery : Calibration of reference solutions
  • Temperature range 15 °C to 35 °C
  • Approved on 28 June 2018
  • Institute service identifier : ptb-QM-con-2
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
pH in Absolute expanded uncertainty in pH in
aqueous pH buffer solution 6.9 to 7.9 2.0E-3 to 3.0E-3
  • Mechanism for measurement service delivery : Primary measurement of Phosphate buffer 1:3
  • Temperature range 5°C to 50°C; Data given for 25°C , Declared uncertainties do not include the uncertainty contribution due to the Bates-Guggenheim convention
  • Approved on 15 October 2019
  • Institute service identifier : ptb-QM-pH-5
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
pH in Absolute expanded uncertainty in pH in
aqueous pH buffer solution 6.4 to 7.4 2.0E-3 to 3.0E-3
  • Mechanism for measurement service delivery : Primary measurement of Phosphate buffer 1:1
  • Temperature range 5°C to 50°C; Data given for 25°C , Declared uncertainties do not include the uncertainty contribution due to the Bates-Guggenheim convention
  • Approved on 15 October 2019
  • Institute service identifier : ptb-QM-pH-4
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
pH in Absolute expanded uncertainty in pH in
aqueous pH buffer solution 3.5 to 4.5 2.0E-3 to 3.0E-3
  • Mechanism for measurement service delivery : Primary measurement of Phthalate buffer
  • Temperature range 5°C to 50°C; Data given for 25°C , Declared uncertainties do not include the uncertainty contribution due to the Bates-Guggenheim convention
  • Approved on 15 October 2019
  • Institute service identifier : ptb-QM-pH-3
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Number concentration in cm-3 Absolute expanded uncertainty in % Number concentration in Absolute expanded uncertainty in
air airborne particles 100 to 2.00E4 1.0E1
  • Mechanism for measurement service delivery : Calibration
  • Soot particle size: 23 nm to 500 nm
  • Approved on 08 July 2015
  • Institute service identifier : ptb-qm-pnc-001
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Charge concentration in fC/cm3 Absolute expanded uncertainty in % Charge concentration in Absolute expanded uncertainty in
air airborne particles 1 to 3 7
  • Mechanism for measurement service delivery : Calibration
  • Soot particle size: 23 nm to 500 nm
  • Approved on 08 July 2015
  • Institute service identifier : ptb-qm-cc-001
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Relative expanded uncertainty in % Mass fraction in mg/kg Relative expanded uncertainty in %
monoelemental aqueous solution aluminum 0.1 to 2000 0.5 to 0.2 980 to 1020 0.2
  • Mechanism for measurement service delivery : CRM PTB-Al 0001 or reference measurement
  • Approved on 27 March 2013
  • Institute service identifier : 3.22-2
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
herb arsenic 0.7 to 2.5 6.5
  • Mechanism for measurement service delivery : Calibration
  • Approved on 28 June 2016
  • Institute service identifier : ptb-qm-w-012
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Relative expanded uncertainty in % Mass fraction in mg/kg Relative expanded uncertainty in %
monoelemental aqueous solution bismuth 0.1 to 2000 0.5 to 0.2 980 to 1020 0.2
  • Mechanism for measurement service delivery : CRM PTB-Bi 0001 or reference measurement
  • Approved on 27 March 2013
  • Institute service identifier : AC-L008
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Relative expanded uncertainty in % Mass fraction in % Absolute expanded uncertainty in %
high purity sodium chloride bromide 1.5 to 6 9
  • Mechanism for measurement service delivery : Reference measurement service
  • Approved on 11 April 2021
  • Institute service identifier : ptb-QM-w-054
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount content in nmol/kg Absolute expanded uncertainty in % Amount content in Absolute expanded uncertainty in
natural water cadmium 70 to 100 3
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 27 March 2013
  • Institute service identifier : AC-Was-001

Select Metrology Area

General physics
Acoustics, Ultrasound, Vibration

This metrology area covers the fields of acoustics, ultrasound and vibration.

Electricity and Magnetism

This metrology area covers the fields of DC and AC measurements, impedance, electric and magnetic fields, radiofrequencies and measurements on materials.

Length

This metrology area covers the fields of laser frequencies and dimensional metrology.

Mass and related quantities

This metrology area covers the fields of mass standards, force, pressure, density, hardness, torque, gravity and viscosity.

Chemistry and Biology
Chemistry and Biology

This metrology area covers all fields relevant to chemistry and biology.

Ionizing radiation
Ionizing Radiation

This metrology area covers the fields of dosimetry, radioactivity and neutron measurements.