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Evaluation of confidence for measurement of VOCs in indoor air

실내공기질 VOCs 측정의 신뢰도 평가를 위한 연구

  • Kim, Myoung Ock (National Institute of Environment Research of Environment Research, Korea Reserach Institute of Standards and Science) ;
  • Kim, Young Lan (National Institute of Environment Research of Environment Research, Korea Reserach Institute of Standards and Science) ;
  • Hong, Suk Young (National Institute of Environment Research of Environment Research, Korea Reserach Institute of Standards and Science) ;
  • Heo, Gwi Suk (Environmental Research Complex) ;
  • Lim, Hyun Woo (National Institute of Environment Research of Environment Research, Korea Reserach Institute of Standards and Science) ;
  • Choe, Seoung Hun (National Institute of Environment Research of Environment Research, Korea Reserach Institute of Standards and Science) ;
  • Lee, Won Suk (National Institute of Environment Research of Environment Research, Korea Reserach Institute of Standards and Science) ;
  • Han, Jin Seok (National Institute of Environment Research of Environment Research, Korea Reserach Institute of Standards and Science) ;
  • Kim, Kum Hee (National Institute of Environment Research of Environment Research, Korea Reserach Institute of Standards and Science)
  • 김명옥 (국립환경과학원 환경기반연구부 환경측정분석센터) ;
  • 김영란 (국립환경과학원 환경기반연구부 환경측정분석센터) ;
  • 홍석영 (국립환경과학원 환경기반연구부 환경측정분석센터) ;
  • 허귀석 (한국표준과학연구원) ;
  • 임현우 (국립환경과학원 환경기반연구부 환경측정분석센터) ;
  • 최성헌 (국립환경과학원 환경기반연구부 환경측정분석센터) ;
  • 이원석 (국립환경과학원 환경기반연구부 환경측정분석센터) ;
  • 한진석 (국립환경과학원 환경기반연구부 환경측정분석센터) ;
  • 김금희 (국립환경과학원 환경기반연구부 환경측정분석센터)
  • Received : 2012.11.19
  • Accepted : 2013.04.29
  • Published : 2013.06.25

Abstract

To establishment of PT Program for Indoor air quality field that manufacture of confidential development PTMs (proficiency testing materials) and examined of proficiency testing evaluation included sampling process whether or not that is valid. Confirmation of homogeneity and stability of PTMs prepared. PTMs were confirmed to be homogeneous enough to be used as proficiency testing materials since withinbottle homogeneities of the RMs were lower than 0.3 times of targeted standard deviation of proficiency testing. The result of this study showed that the Robust RSD of proficiency testing for VOCs (volatile organic compounds) appeared 23~43% in concentration of 50~320 ${\mu}g/m^3$ for Method A(Distribution by adsorption in Tenax-tube of VOCs), but less 13~42% in concentration of 200~1200 ${\mu}g/m^3$, 16~31% in concentration of 100~450 ${\mu}g/m^3$ for Method B (distribution by VOCs of gas phase in 10L Tedalr bag), C (directly sampling of cylinder with high pressure) respectively. The result of this study showed that method C with sampling is most adequate to the proficiency testing for VOCs in indoor air.

Keywords

indoor air quality;proficiency testing;reference materials;VOCs

References

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