Standard test method for flash point of liquids by Tag Open-Cup apparatus
This method covers the determination of flash points by Tag open-cup apparatus of liquids having flash points between 0 and 325/sup 0/F (-18 and 163/sup 0/C). This method, when applied to paints and resin solutions that tend to skin over or that are very viscous, gives less reproducible results than when applied to solvents. This standard should be used to measure and describe the properties of materials, products, or assemblies in response to heat and flame under control laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use. The sample is placed in the cup of a Tag Open-Cup Tester, and heated at a slow but constant rate. A small test flame is passed at a uniform rate across the cup at specified intervals. The flash point is taken as the lowest temperature at which application of the test flame across the diameter of the surface causes the vapor at the surface of the liquid to flash. In the case of less volatile materials, the vapors may ignite but not continue to burn. With more volatile materials, the flash point and firepoint may occur simultaneously.
- OSTI ID:
- 6646648
- Journal Information:
- Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 23; ISSN ASTSA
- Country of Publication:
- United States
- Language:
- English
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