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ISSN : 2288-9167(Print)
ISSN : 2288-923X(Online)
Journal of Odor and Indoor Environment Vol.13 No.4 pp.290-296
DOI : https://doi.org/10.15250/joie.2014.13.4.290

Analysis of error cases induced with regard to the calculation of the dilution factor during the proficiency test of certified odor measurement agencies

Seok-Jun Lee1, Bongbeen Yim1, Soo-Joon Cho2, Sung-Hun Choi3, Myoung-Ock Kim3, Sun-Tae Kim1*
1Department of Environmental Engineering, Daejeon University
2Department of Environmental Health Science, Daejeon Health Sciences College
3Environmental Infrastructure Research Department, National Institute of Environmental Research
*Corresponding author Tel : +82-42-280-2534
E-mail : envsys@dju.kr
02 December, 2014 17 December, 2014 22 December, 2014

Abstract

The aim of this study is to analyze error cases induced during the proficiency test of certified odor measurement agencies. In the case of the homogeneity test performed in three panel groups, the geometric mean dilution factor of the site boundary PTMs(proficiency testing materials) was 1.4 ± 0.2, 1.7 ± 0.2, 1.8 ± 0.1 and that of the outlet PTMs was 3.7 ± 0.2, 3.7 ± 0.3, 3.7 ± 0.3, respectively. In the case of the stability test for 72 h, the geometric mean dilution factor of the site boundary PTMs was 1.6 ± 0.1 and that of the outlet PTMs was 3.6 ± 0.1. Among error cases induced during the proficiency test of certified odor measurement agencies, the proportion of error cases was in the order of case II(discontinuance of estimation)(40.0%) > case I(error on estimation procedure by panelist)(33.3%) > case III(miswriting of estimation result)(13.3%) > case IV(miswriting of dilution factor) and V(writing of wrong estimation result)(6.7%). Therefore, it seems likely that additional education related to error cases II and I is required.

복합악취 검사기관의 숙련도시험을 통한 희석배수 산정과정에서의 오류 사례 분석

이석준1, 임봉빈1, 조수준2, 최성헌3, 김명옥3, 김선태1*
1대전대학교 환경공학과
2대전보건대학교 환경보건과
3국립환경과학원 환경기반연구부 환경측정분석센터

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