MIL-PRF-87257 Hydraulic Fluid, Fire Resistant; Low Temperature, Synthetic Hydrocarbon Base, Aircraft And MissileThis specification describes the characteristics and provides the requirements for a synthetic hydrocarbon base hydraulic fluid for use in the -54??C to +200??C temperature range in aircraft and missile hydraulic systems. This hydraulic fluid is identified by NATO Code No. H-538 \(see 6.5\).

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MIL-PRF-87257B

ASTM D 5949

Pour Point of Petroleum Products (Automatic Pressure Pulsing

Method)

ASTM D 6304

Determination of Water in Petroleum Products, Lubricating Oils,

and Additives by Coulometric Karl Fisher Titration

ASTM D 6793

Determination of Isothermal Secant and Tangent Bulk Modulus

(Application for copies should be addressed to ASTM International, 100 Barr Harbor Drive, PO

Box C700, West Conshohocken, Pennsylvania, USA 19428-2959. Order online at

SOCIETY OF AUTOMOTIVE ENGINEERS (SAE)

SAE AMS 3217/2 -

Test Slabs, Acrylonitrile Butadiene (NBR-L) Low Acrylonitrile,

65-75 (DoD adopted)

(Applications for copies should be addressed to SAE, 400 Commonwealth Dr., Warrendale PA

(Non-Government standards and other publications are normally available from the

organizations which prepare or which distribute the documents. These documents also may be

available in or through libraries or other informational services.)

2.4 Order of precedence

In the event of a conflict between the text of this specification and the references cited herein,

the text of this specification takes precedence. Nothing in this specification supersedes

applicable laws and regulations unless a specific exemption has been obtained.