Metrology Information about this sector

Role of accreditation in this sector

It is impossible to imagine metrology – the science of measurement – without accreditation. Because accredited calibration and testing laboratories ensure that measurands of whatever nature are objective and reliable. They make an essential contribution to ensuring that consumers can be confident that in terms of their size or mass, the goods they buy do in fact live up to the information on the packaging. This is also highly relevant for the economy and international trade.

Accreditation provides objective evidence that the reference and working standards for indications such as metre, kilogram and hertz are traced back to the so-called national standards, which fall under the remit of the National Metrology Institute of Germany (PTB). Only then are these units in conformity with with internationally recognised conventions such as the International System of Units (SI units). Accreditation in the area of metrology therefore ensures that a screw from China and a nut from Belgium fit together without any problems.

Our departments in the metrology sector

Chemical and Medical Quantities

The Chemical and Medical Quantities department comprises the subject fields “Chemical measurands” and “Medical measurands”.

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Head of Department
Dr. Klaus Unterderweide

Dimensional Quantities

The Dimensional Quantities department comprises the subject fields “Length”, “Angle”, “Coordinate metrology” and “Industrial metrology”.

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Head of Department
Dipl.-Ing. Otfried Rätz

Electrical Quantities

The Electrical Quantities department comprises the three subject fields “Direct current and low frequency”, “Magnetic measurands” and “Time and frequency”.

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Head of Department
Dr. rer. nat. Marc Talkenberg

High Frequency and Radiation Quantities

The High Frequency and Radiation Quantities department comprises the three subject fields “High-frequency measurands”, “Ionising radiation and radioactivity” and “Optical measurands”.

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Head of Department
Dr. rer. nat. Marc Talkenberg

Mechanical Quantities

The Mechanical Quantities department is divided into the subject fields “Mechanical measurands”, “Acoustic measurands”, “Flow measurands”, “Material testing machines” and “Measuring instruments for automotive engineering”.

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Head of Department
Dipl.-Ing. Katrin Wallstab-Freitag

Measuring Instruments

The Measuring Instruments department covers measuring instruments that are governed by the European legislative instruments 2014/31/EU (non-automatic weighing instruments) and 2014/32/EU (measuring instruments) as well as by German law relating to the making available on the market of measuring instruments, their use and verification, and prepackages (Measures and Verification Act – MessEG).

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Head of Department
Dr. Klaus Unterderweide

Thermodynamic Quantities

The Thermodynamic Quantities department is divided into the subject fields “Temperature measurands” and “Humidity measurands”.

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Head of Department
Dipl.-Ing. Jürgen Drees

Application examples of accredited services in this field of activity

  • Inspection and certification of measuring instruments
  • Calibrations of mass fractions of elements, measuring instruments for electrolytic conductivity, pH value or liquid volumes and liquid densities, and viscosity of liquids.
  • Test equipment monitoring in the range from a few nanometres to about 20 metres.
  • Calibration of measurement standards up to virtual coordinate measuring instruments
  • Calibration of high-tech measuring instruments for the detection and process control of high-voltage discharges, but also in the area of electrical energy, for example for the testing of electricity meters and the calibration of current and voltage measuring transformers used in industry
  • Calibration of high frequency transfer standards for industrial high-tech laboratories through to the calibration of mobile measuring instruments used to test electromagnetic compatibility (EMC).
  • Calibration of measuring instruments in the area of traditional mechanical measurands, such as force, pressure, acceleration and mass
  • Calibration of measuring equipment components in material testing machines, such as force or length measuring equipment
  • Calibration of measuring instruments relevant to automotive engineering, such as headlight adjustment systems, brake test benches and exhaust fume measuring instruments
  • Calibration of measuring instruments for relative humidity and measuring instruments for absolute humidity

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