Measuring and testing – Illuminating fluid
Patent
1997-02-19
1998-11-10
Williams, Hezron E.
Measuring and testing
Illuminating fluid
422 54, G01M 320, G01N 2700
Patent
active
058346309
ABSTRACT:
A flash point measuring apparatus including a sample vessel 11 made of an electrically conductive material, a heating device 17 for heating a sample S contained in the sample vessel 11, an igniting heat source 13 arranged above the sample vessel and made of an electrically conductive material, a temperature detecting device 12 for detecting a temperature of the sample S contained in the sample vessel 11, and a current amplifier 15 connected to the sample vessel 11 serving as a cathode and the igniting heat source 13 serving as an anode. Each time a temperature of the sample S is increased by 2.degree. C., the igniting heat source is moved in a horizontal plane above the sample surface at a predetermined speed. When a mixture of a vapor of the sample S and an air is ignited, a flame ion current flows between the sample vessel 11 and the igniting heat source 13. A flash point of the sample S is measured as a temperature of the sample at which the flame ion current is detected by the current amplifier 15.
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Politzer Jay L.
Tanaka Scientific Limited
Williams Hezron E.
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