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CONSTANT-VOLUME GAS THERMOMETRY BETWEEN 4 AND 100 K.

Author(s) : STEUR P. P. M., DURIEUX M.

Type of article: Periodical article

Summary

GAS-THERMOMETER MEASUREMENTS BETWEEN 4 AND 100 K HAVE BEEN PERFORMED AS PART OF THE PREPARATORY WORK IN SEVERAL INSTITUTES FOR A FUTURE, REVISED, INTERNATIONAL PRACTICAL TEMPERATURE SCALE. GAS-THERMOMETER TEMPERATURES ARE COMPARED, BETWEEN 13.8 AND 100 K, WITH PLATINUM RESISTANCE THERMOMETERS CALIBRATED ON IPTS-68 AND, BETWEEN 4.2 AND 27.1 K, WITH RHODIUM-IRON RESISTANCE THERMTD AIN YIA LABORATORY SCALE OF 1975 (NPL-75). RESULTS SHOW AGREEMENT WITH NPL-75 WITHIN 0.3 MILLIK OVER MOST OF THE RANGE. DIFFERENCES FROM NPL-75 OF 0.6 MILLIK WERE FOUND IN THE RANGE 10 TO 14 K AND AROUND 27 K. BELOW 50 K, IPTS-68 IS SHOWN TO BE 4 TO 10 MILLIK HIGHER THAN THERMODYNAMIC TEMPERATURES AND BETWEEN 70 AND 100 K, IT IS 9 MILLIK LOWER THAN THERMODYNAMIC TEMPERATURES.

Details

  • Original title: CONSTANT-VOLUME GAS THERMOMETRY BETWEEN 4 AND 100 K.
  • Record ID : 1988-0925
  • Languages: English
  • Source: Metrologia - 23.
  • Publication date: 1986
  • Document available for consultation in the library of the IIR headquarters only.

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