ASTM D7739-11(2016)
Standard Practice for Thermal Oxidative Stability Measurement via Quartz Crystal Microbalance
- Standard No.
- ASTM D7739-11(2016)
- Release Date
- 2011
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D7739-11(2020)
- Latest
- ASTM D7739-11(2020)
- Scope
3.1 The tendency of a jet fuel to resist the formation of deposits at elevated temperature is indicative of its oxidative thermal stability. This practice provides a technique for the simultaneous determination of deposit formation and oxygen consumption during the thermal oxidation of jet fuels and other hydrocarbon liquids. The practice can be used to evaluate the thermal stability of fuels and to determine the efficacy of additives in inhibiting deposition or slowing oxidation, or both. A test temperature of 1408201;°C and run length up to 168201;h has been found to be effective for the relative evaluation of fuels and fuel additives. This practice has also been employed for other hydrocarbon liquids, such as gasoline and diesel fuels, but additional safety issues may need to be addressed by the user.
1.1 This laboratory practice covers the quantitative determination of surface deposits produced during the thermal oxidation of gas turbine fuels by monitoring the oscillation frequency of a quartz crystal during thermal exposure. In this practice, “thermal oxidative stability” refers to the tendency of a fuel to resist surface deposit formation during heating.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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 of regulatory limitations prior to use.
ASTM D7739-11(2016) history
- 2020 ASTM D7739-11(2020) Standard Practice for Thermal Oxidative Stability Measurement via Quartz Crystal Microbalance
- 2011 ASTM D7739-11(2016) Standard Practice for Thermal Oxidative Stability Measurement via Quartz Crystal Microbalance
- 2011 ASTM D7739-11 Standard Practice for Thermal Oxidative Stability Measurement via Quartz Crystal Microbalance
