An evaluation of uncertainty of random effects with correlation - gravimetric preparation of standard gas -

상관관계가 있는 우연효과에 대한 불확도 평가 - 중량법에 의한 표준가스 제조 -

  • Choi, JongOh (Division of Chemical Metrology and Materials Evaluation Korea Research Institute of Standards and Science) ;
  • Kim, Yong-Doo (Division of Chemical Metrology and Materials Evaluation Korea Research Institute of Standards and Science) ;
  • Kim, Dal-Ho (Division of Chemical Metrology and Materials Evaluation Korea Research Institute of Standards and Science) ;
  • Kim, Jin-Seog (Division of Chemical Metrology and Materials Evaluation Korea Research Institute of Standards and Science)
  • 최종오 (한국표준과학연구원 물질량표준부) ;
  • 김용두 (한국표준과학연구원 물질량표준부) ;
  • 김달호 (한국표준과학연구원 물질량표준부) ;
  • 김진석 (한국표준과학연구원 물질량표준부)
  • Received : 2002.09.18
  • Accepted : 2003.01.10
  • Published : 2003.02.25

Abstract

The standard uncertainties of two different approaches using the same data set are compared and evaluated using an example of gravimetric standard gas preparation. It is shown that the correlation between input quantities should be taken into account for the proper evaluation of uncertainty resulting from random effects.

Keywords

Uncertainty;Standard gas;Random effect;Correlation;GUM

Acknowledgement

Supported by : 과기부

References

  1. Guide to the expression of uncertainty in measurement ISO ISO GUM
  2. Analytical Science and Technology v.15 JongOh Choi;Euijin Hwang;Jin-Chun Woo;Hun-Young So
  3. ISO 6142 Preparation of calibration gas mixtures weighing methods
  4. Accreditation and Quality Assurance v.8 JongOh Choi;Euijin Hwang;Hun-Young So;Byungjoo Kim
  5. 한국표준과학연구원 측정불확도 표현지침 KRISS-99-070-SP