Form This specification covers a trimethylol propane triheptanoate fluid (see 8.2) representative of standard type (SPC) gas turbine engine oils. Application This fluid has been used typically to evaluate the ability of elastomeric and other polymeric materials to conform to designated requirements after contact with@ or immersion in@ gas turbine lubricants such as those conforming to MIL-PRF-7808@ MIL-PRF-23699 grade Std and AS5780 Grade SPC. This fluid is not representative of high thermal stability lubricants such as those conforming to MIL-PRF-23699 class HTS or AS5780 class HPC. AMS3085 (Reference Oil 300) should be used where elastomer compatibility with such gas turbine lubricants is required. This fluid is not intended for operational use in gas turbine engines (see 8.2). Safety - Hazardous Materials While the materials@ methods@ applications@ and processes described or referenced in this specification may involve the use of hazardous materials@ this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.