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Reference standard of the length unit - meter in the range from 0, 1 to 100 mm

The standard is created and is in operation since 1996standard of the length unit

Standard composition:

The standard is a set of means of measurement, located in a special temperature-controlled room, situated on a separate vibration resistant foundation and includes:

  • Kosters interferometer;
  • gas-discharge lamps with cadmium and helium;
  • the block for measuring the temperature of measures: thermometer with g.s. 0,01° С, potentiometer Р 348 with a normal element;
  • bowl-shaped mercury barometer;
  • psychrometer with thermometer;
  • steel comparison measure 100 mm;
  • quartz comparison measure 100 mm;
  • temperature meter of end blocks

Metrological characteristics:

  • length range – 0,1 - 100 mm;
  • residual bias, not more than 0,027 mcm;
  • random error, not more than 0,003 mcm;
  • instability for 10 years – 0,030 mcm

BelGIM calibration and measurement capabilities (СМС) in the field of geometric variables measurements are included into Attachment С of the Agreement on mutual recognition of national standards, calibration and measurement certificates (CIPM MRA) and published on International Bureau of Weights and Measures website.

Sources of traceability:

Russia, FSUE “All-Russian Research Institute of Metrology named after D.I. Mendeleyev”, State primary standard of the unit of length-meter (GET 2-85)

Scope of application:

  • machine engineering;
  • instrument-making industry;
  • transport;
  • testing, verification and calibration laboratories





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