ASTM D2155 - Fire Resistance of Aircraft Hydraulic Fluids by Autoignition Temperature

Significance and Use

4.1 Autoignition is dependent on the chemical and physical properties of the material and the method and apparatus employed for its determination.  The autoignition temperature by a given method does not necessarily represent the minimum temperature at which a given material will self-ignite in air.  The volume of the vessel used is particularly important since lower autoignition temperatures will be achieved in larger vessels.  Vessel material can also be an important factor. 

Scope

This test method is used for assessing the fire resistance of hydraulic fluids used for aircraft applications by determination of the autoignition temperature of the hydraulic fluid in air at one atmosphere pressure using hypodermic syringe injection. 

Extracted, with permission, from ASTM D2155-18 - Fire Resistance of Aircraft Hydraulic Fluids by Autoignition Temperature, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, astm.org