유체기계공업학회:학술대회논문집

한국유체기계학회 (Korean Society for Fluid machinery)
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Uncertainty Evaluation of Viscosity Measurement Standards

  • 최해만 (한국표준과학연구원 유체유동그룹) ;
  • 윤병로 (한국표준과학연구원 유체유동그룹) ;
  • 이용봉 (한국표준과학연구원 음향진동그룹) ;
  • 최용문 (한국표준과학연구원 유체유동그룹) ;
  • 이상현 (한국표준과학연구원 유체유동그룹)
  • 발행 : 2005.12.01
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초록

Viscosity measurement standards were evaluated according to ISO/IEC 17025. The step-up procedure was employed to calibrate a series of capillary type master viscometers. Uncertainty was calculated with evaluation of various uncertainty factors affected in viscosity measurement. The maximum expanded uncertainty(U) of the master viscometer was $3.0{\times}10^{-3}$(at the confidence level of 95 %). This evaluation example will be useful in viscosity measurement uncertainty determination of other standard measurement.

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