A Study on the Evaluation of Measurement Uncertainty for the National Calibration and Test Organizations (Liquid Flow)

국가교정검사기관(액체유량)의 측정불확도 평가 및 비교연구

  • 임기원 (한국표준과학연구원 유체유동그룹)
  • Published : 2000.11.01

Abstract

A proficiency test is one of programs which Korea Research Institute of Standards and Science(KRISS), as national metrology institute, is putting in operation for the mutual recognition arrangement. The Fluid Flow Group of KRISS evaluated the measurement capability for liquid flowmeter calibrator of the national calibration and test organizations. The uncertainty of national standard system was estimated in accordance with Guide to The Expression of Uncertainty in Measurement (ISO), and the turbine flowmeter, which was used for the round-robin test as a reference flowmeter, was characterized. The round-robin tests with the turbine flowmeter package were carried out in 1995 and 1999. The test results of the organizations and those of KRISS agreed within $\pm0.2$%. It is found thus that the organizations have the traceability of the national standard for liquid flow measurement.

Keywords

References

  1. General requirements for the competence of testing and calibration laboratory (1st edition) ISO/IEC 17025 ISO/IEC
  2. Guide to The expression of uncertainty in measurement (1st edition) ISO
  3. Report of KRISS Proficiency testing for the calibration and testing organizations Lim, K. W.;Yoon, B. R.
  4. Report of KRISS Evaluation on the measurement capability for calibration and test organization (Fluid flow) Lim, K. W.;Yoon B. R.
  5. Measurement of liquid flow in closed conduits-weighing methods ISO 4185 ISO
  6. Measurement of liquid flow in closed conduits-method by collection of the liquid in a volumetric tank ISO 8316 ISO
  7. Accuracy test methods of liquid flowmeter JFI standard 1001 JFI standard
  8. Report of KRISS Development of a mobile flow proving system Lim, K. W.;Paik J. S.
  9. Manual of petroleum measurement standards (1st edition) API 1101 API
  10. Journal of the Korea Society of Mechanical Engineers v.24 no.10 A study on the measurement uncertainty of pipe prover Lim. K. W.
  11. proceedings of the SAREK '2000 Summer Annual Conference A study on measurement accuracy of the national calibration and test organizations (Liquid flow) Lim, K. W.