Method and arrangement for measuring the flash point of liquids

Details Method and arrangement for measuring the flash point of liquids Method and arrangement for measuring the flash point of liquids

1991-11-20

1993-01-05

Yasich, Daniel M.

Thermal measuring and testing

Flammability testing

73 36, 374157, G01K 1100, G01N 2552

Patent

active

051764490

ABSTRACT:
The present invention is related to a device and method for determining the flash point of a liquid or solid material to be tested by measuring the pressure obtained in the measuring chamber after an ignition. According to the invention, a liquid or solid is placed into a measuring vessel and the measuring vessel is heated. The measuring vessel is tightly closed with a cover. At a given temperature the generated vapor-air-mixture is ignited and the pressure increase occurring due to the temperature increase is taken as a measure for the size of the flame for determining the flash point. The pressure increase is preferably measured with a piezoresistive pressure transducer. The temperature of the heated cover is measured with the temperature sensor and the sample temperature with the temperature sensor.

REFERENCES:
patent: 4140004 (1979-02-01), Smith et al.
patent: 4348117 (1982-09-01), Michels
patent: 5052817 (1991-10-01), Bement et al.

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