Form This specification covers a mixture of liquid hydrocarbons and soluble additives Application To provide a standard composition@ simulating aviation jet engine fuel. This fluid is intended for use in laboratory tests involving compatibility and interaction with aircraft materials@ but usage is not limited to such applications Classification Jet reference fluid shall be classified as follows Type 1 Liquid hydrocarbons without the addition of metal ions. Type 1 fluid is intended for all material compatibility tests except chalking evaluations Type 2 Liquid hydrocarbons with a controlled concentration of metal ions. Type 2 fluid is intended for chalking evaluations Type 1 shall be supplied unless Type 2 is ordered Safety - Hazardous Materials Shall be in accordance with AS5502 (1.1)