This is a specification to define the requirements of fire resistant fluids for use in turbine lubrication. This specification defines phosphate ester fluids which will give satisfactory lubrication performance in a turbine engine. However, it is possible that phosphate esters that do not meet this specification may give adequate performance in the field.
Fire resistant fluids are more difficult to ignite and show little tendency to propagate a flame. The term “fire resistant fluid” does not mean that the fluid will not burn.
The normal fluid operating temperature will be in the range of 54 to 65°C and will experience a maximum temperature of about 93°C during flow across the turbine bearings whose housing temperature may be as high as 343°C.
1.1 This specification covers the requirements for phosphate ester based fire resistant fluids for use in turbine lubrication.
1.2 The specification defines only unused fluid before it is installed in the turbine. It is not intended for fluids used in electrohydraulic control (EHC) systems.
1.3 The use of this type of fluid is restricted to turbine systems that have been designed or modified to accommodate phosphate ester lubricants.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 The following precautionary caveat pertains only to Sections 5 and 5.3. 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.
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