Since 2011, proficiency test for the air dilution olfactory method started in Korea for the evaluation of the authorized odor inspection agencies’ analysis skill. For this purpose, sulfur compounds of PTMs (proficiency test materials) were made and investigated for the application to the proficiency test as a complex malodor sample. Time stability and homogeneity between samples were analysed for the PTM which was made with 10 ppm of DMS and 10 ppm of DMDS. As the results, the stability of sample concentration with GC analysis was shown around 6%RSD through the time of 6~48 hr. In addition, dilution number during the same test period appeared almost stable, less than 6%RSD in air dilution olfactory method. The reproducibility results of four laboratories showed very similar results except one lab which was caused by the elder panel characteristics.

ABSTRACT
요약문
1. 서론
2. 숙련도 시험용 시료의 선정 및 평가 방법
3. 결과 및 고찰
4. 결론
사사
참고문헌

• 김선태
• 이석준
• 한진석
• 김금희
• 김정화
• 김영란
• 조수준
• 이은영