Product category:
General lab equipment
News Release from: Labtex | Subject: CLA 4
Edited by the Laboratorytalk Editorial
Team on 08 May 2006
Tester determines flash-point and
fire-point
The CLA-4 is an automatic tester for determining ASTM D92 flash and fire point analysis of liquid as well as highly viscous or solid samples
The Cleveland flash-point and fire-point test method is a dynamic method and depends on defined rates of temperature increases to control the precision of the method Its primary use is for viscous materials having a flash-point between +79C (175F) and +400C (752F) except fuel oils, to define the hazards of flammable and combustible materials used in shipping and safety regulations
This article was originally published on Laboratorytalk on 30 Sep 2005 at 8.00am (UK)
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The temperature of the 70ml test specimen is increased rapidly at first and then at a slower constant rate as the flash-point is approached.
At specified intervals a test flame is passed across the cup, to measure the tendency of the test specimen to form a flammable mixture with air under controlled laboratory conditions.
The flash-point is the lowest liquid temperature at which application of the flame causes the vapours of the test specimen of the sample to ignite.
To determine the fire-point, the test is continued until the application of the test flame causes the test specimen to ignite and sustain burning for a minimum of 5s.
For substances with unknown flash-points, the CLA 4 has a special search mode program.
During the entire heating period, the test flame is moved across the sample at suitable intervals.
The expected flash-point of a specimen can thereby be found in a time saving and economical manner. Request a free brochure from Labtex ...
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