Chemistry: analytical and immunological testing – Oxygen containing – Molecular oxygen
Patent
1989-10-10
1992-04-21
Lacey, David L.
Chemistry: analytical and immunological testing
Oxygen containing
Molecular oxygen
436 44, 436141, 436142, 436163, 73 2331, 73 2334, G01N 27404, G01N 3322
Patent
active
051067552
ABSTRACT:
A method and apparatus for assessing the odor intensity of combustion gas produced from an internal combustion engine in which the odor intensity of combustion gas is obtained from the pH-value of an aqueous solution prepared from odor-producing substances, based on a predetermined relationship between pH-value and odor intensity. The odor intensity thus obtained strongly correlates with organoleptically evaluated odor intensity. Since the odor intensity of the gas is determined from the pH-value, the precision and the reliability of the odor intensity measurement are enhanced.
REFERENCES:
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A lecture report in the Transactions of the Society of Automotive Engineers of Japan, authored by Kato et al. and published in Oct. 1977 & (English translation).
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P. L. Levins et al., "Chemical Analysis of Diesel Exhaust Odor Species", SAE Paper 740216, 1974, pp. 1-11.
"The Transactions of the Society of Automotive Engineers of Japan No. 761", 1976, by Kaji et al., pp. 44-52.
"The Transactions of the Society of Automotive Engineers of Japan No. 762", 1976, by Kaji et al., pp. 475-478.
S. Lesley et al., "Diesel Exhaust Odor", SAE Paper 760554, pp. 1-24.
Lacey David L.
Redding David
Toyoto Jidosha Kabushiki Kaisha
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