ASTM D2878-10(2016)
Standard Test Method for Estimating Apparent Vapor Pressures and Molecular Weights of Lubricating Oils
- Standard No.
- ASTM D2878-10(2016)
- Release Date
- 2010
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D2878-21
- Latest
- ASTM D2878-21
- Scope
5.1 The vapor pressure of a substance as determined by measurement of evaporation reflects a property of the bulk sample. Little weight is given by the procedure to the presence of low concentrations of volatile impurities.
5.2 Vapor pressure, per se, is a thermodynamic property that is dependent only upon composition and temperature for stable systems. In the present method, composition changes occur during the course of the test so that the contribution of minor amounts of volatile impurities is minimized.
1.1 This test method covers a calculation procedure for converting data obtained by Test Method D972 to apparent vapor pressures and molecular weights. It has been demonstrated to be applicable to petroleum-based and synthetic ester lubricating oils,2 at temperatures of 3958201;K to 5358201;K (2508201;°F to 5008201;°F). However, its applicability to lubricating greases has not been established.
Note 1: Most lubricants boil over a fairly wide temperature range, a fact recognized in discussion of their vapor pressures. For example, the apparent vapor pressure over the range 08201;% to 0.18201;% evaporated may be as much as 100 times that over the range 4.98201;% to 5.08201;% evaporated.
1.2 The values stated in SI units are to be regarded as the standard. In cases in which materials, products, or equipment are available in inch-pound units only, SI units are omitted.
1.3 WARNING—Mercury has been designated by many regulatory 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 into your state or country may be prohibited by law.
1.4 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 establish appropriate safety and health practices and determine the applicability or regulatory limitations prior to use. For specific warning statements, see 6.2, 7.1, 8.2, and Annex A2.
ASTM D2878-10(2016) Referenced Document
- ASTM A240/A240M Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
- ASTM D2503 Standard Test Method for Relative Molecular Mass (Molecular Weight) of Hydrocarbons by Thermoelectric Measurement of Vapor Pressure
- ASTM D2595 Standard Test Method for Evaporation Loss of Lubricating Greases Over Wide-Temperature Range
- ASTM D2883 Standard Test Method for Reaction Threshold Temperature of Liquid and Solid Materials
- ASTM D92 Standard Test Method for Flash and Fire Points by Cleveland Open Cup
- ASTM D972 Standard Test Method for Evaporation Loss of Lubricating Greases and Oils
- ASTM E659 Standard Test Method for Autoignition Temperature of Liquid Chemicals
ASTM D2878-10(2016) history
- 2021 ASTM D2878-21 Standard Test Method for Estimating Apparent Vapor Pressures and Molecular Weights of Lubricating Oils
- 2010 ASTM D2878-10(2016) Standard Test Method for Estimating Apparent Vapor Pressures and Molecular Weights of Lubricating Oils
- 2010 ASTM D2878-10 Standard Test Method for Estimating Apparent Vapor Pressures and Molecular Weights of Lubricating Oils
- 1995 ASTM D2878-95(2009) Standard Test Method for Estimating Apparent Vapor Pressures and Molecular Weights of Lubricating Oils
- 1995 ASTM D2878-95(2005) Standard Test Method for Estimating Apparent Vapor Pressures and Molecular Weights of Lubricating Oils
- 1995 ASTM D2878-95(2000)e1 Standard Test Method for Estimating Apparent Vapor Pressures and Molecular Weights of Lubricating Oils
- 2000 ASTM D2878-95 Standard Test Method for Estimating Apparent Vapor Pressures and Molecular Weights of Lubricating Oils
