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Significance and Use
While this test method can be applied to pure liquids, it is especially designed for use with mixtures in which one or more components migrate to the surface.
Data of this type are needed for the design of equipment for processing mixed liquids, such as in distillation towers.
1.1 This test method covers the determination of the specific free energy of a liquid-gas surface a short time after formation of the surface.
1.2 It is applicable to liquids with vapor pressures up to 30.0 kPa (225 torr) and kinematic viscosities up to 4.0 mm/s (4.0 cSt) at the test temperature. Higher viscosities have not yet been investigated.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 Warning—Mercury has been designated by EPA and many state agencies as a hazardous material that can cause central nervous system, kidney, and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury-containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPA’s website (http://www.epa.gov/mercury/faq.htm) for additional information. Users should be aware that selling mercury or mercury-containing products, or both, in your state may be prohibited by state law.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 7.3, 7.4, and 7.5.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1193 Specification for Reagent Water
D1331 Test Methods for Surface and Interfacial Tension of Solutions of Surface-Active Agents
E1 Specification for ASTM Liquid-in-Glass Thermometers
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
ASTM D3825-09, Standard Test Method for Dynamic Surface Tension by the Fast-Bubble Technique, ASTM International, West Conshohocken, PA, 2009, www.astm.orgBack to Top