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Interlaboratory comparison of olfactometry in Japan
1Department of Civil and Environmental Engineering, Yamaguchi University, 2-16-1, Tokiwadai, Ube, Yamaguchi, 755-8611 Japan. takaya@yamaguchi-u.ac.jp
Summary
Interlaboratory comparisons of olfactometry were conducted to establish quality control for the triangular odour bag method. Data collected helps define quality criteria for odour measurement accuracy in Japan.
Area of Science:
- Environmental Science
- Analytical Chemistry
Background:
- Olfactory measurement techniques require standardized quality control procedures.
- The triangular odour bag method is a key technique for odour assessment.
Purpose of the Study:
- To collect data for establishing olfactometry quality control procedures.
- To determine quality criteria for the triangular odour bag method.
- To assess the reliability of odour measurements across different laboratories.
Main Methods:
- Conducted interlaboratory comparisons of olfactometry in 2000, 2001, and 2002.
- Utilized measurement methods for samples from smoke stacks and boundary lines.
- Calculated detection thresholds for ethyl acetate and associated statistical parameters.
Main Results:
- Statistical data on detection thresholds (mean, repeatability, reproducibility) were obtained.
- In 2002, 69% of 137 participating Japanese laboratories met the permissible odour index range.
- The collected data supports the development of olfactometry quality control processes.
Conclusions:
- The study provides essential data for olfactometry quality assurance.
- Findings contribute to the standardization and reliability of odour measurement in Japan.
- The results facilitate the establishment of quality criteria for the triangular odour bag method.