ASTM D1740 Test Method for Luminometer Numbers of Aviation Turbine Fuels
1. Scope
1.1 This test method covers the measurement of the flame radiation characteristics of aviation turbine fuels and other similar distillate fuels expressed in terms of luminometer numbers. There is good correlation between smoke point (Test Method D1322) and luminometer number which is presented in Appendix X1.
1.2 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. For specific precautionary statements, see 7.1, 7.2, 8.1, 8.2 and Annex A1.1.
NOTE 1 - It is the intent of Subcommittee J to ballot to withdraw this test method when due for reapproval in 2006, because of very limited and declining use to determine compliance with aviation turbine fuel specifications.
2. Referenced Documents
2.1 ASTM Standards:
D1322 Test Method for Smoke Point of Aviation Turbine Fuels
D1655 Specification for Aviation Turbine Fuels
D2880 Specification for Gas Turbine Fuel Oils
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 luminometer number - a measure of flame temperature at a fixed flame radiation in the green-yellow band of the visible spectrum.
3.1.1.1 Discussion - It can be correlated with combustion characteristics of fuels for use in current commercial aviation turbine engines.
