ASTM_D_4636_-_14.pdf

Designation:D463614Standard Test Method forCorrosiveness and Oxidation Stability of Hydraulic Oils,Aircraft Turbine Engine Lubricants,and Other HighlyRefined Oils1This standard is issued under the fixed designation D4636;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.INTRODUCTIONThis test method is the result of combining Federal Test Methods 5307.2 and 5308.7.Features anddetails of both of these test methods are included,but the new test method is basically Method 5307.2expanded to include Method 5308.7.21.Scope*1.1 This test method covers the testing of hydraulic oils,aircraft turbine engine lubricants,and other highly refined oilsto determine their resistance to oxidation and corrosion degra-dation and their tendency to corrode various metals.Petroleumand synthetic fluids may be evaluated using moist or dry airwith or without metal test specimens.1.2 This test method consists of a standard test procedure,an alternative Procedure 1,and an alternative Procedure 2.Asthere are variations possible with this test method,it will be upto the particular specification to establish the conditionsrequired.In addition to temperature,the variables to specify ifother than those of the standard procedure or alternativeProcedure 1 or 2 are:test time,air flow and humidity,samplefrequency,test fluid quantity,and metal specimen(s).1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3.1 ExceptionThe values in parentheses in some of thefigures are provided for information only for those using oldequipment based on non-SI units.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:3D91 Test Method for Precipitation Number of LubricatingOilsD445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids(and Calculation of Dynamic Viscos-ity)D664 Test Method for Acid Number of Petroleum Productsby Potentiometric TitrationD1193 Specification for Reagent WaterD3339 Test Method forAcid Number of Petroleum Productsby Semi-Micro Color Indicator Titration2.2 U.S.Federal Test Method Standards:4FED-STD-791 Testing Method of Lubricants,Liquid Fuels,and Related ProductsMethod 5307.2 Corrosiveness and Oxidation Stability ofAircraft Turbine Engine Lubricants(Withdrawn)Method 5308.7 Corrosiveness and Oxidation Stability ofLight Oils(Metal Squares)MIL-S-13282 Refined Silver(99.95)(P07015)2.3 Other Standards:5AMS 4616 Silicon Iron Bronze(C65900)AMS 4908 Titanium Alloy(8%Mn)Annealed(R56080)AMS 6490 Steel(M50)(T11350)1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.09.0D on Oxidation of Lubricants.Current edition approved July 1,2014.Published July 2014.Originally approvedin 1986.Last previous edition approved in 2009 as D4636 09.DOI:10.1520/D4636-14.2FED-STD-791D is the parent document containing both test methods.As ofpublication on Nov.6,2009,it no longer contains withdrawn Method 5307.2.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.4Available from the Standardization Document Order Desk,700 Robbins,Avenue,Building 4D,Philadelphia PA 19111-5094(http:/assist.daps.dla.mil).5See ASTM DS 56,Metal and Alloys in the Unified Numbering System.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 QQ-A-671 Cadmium Anod(L01900)QQ-C-576 Copper Electrolytic Tough Pitch(ETP)(C11000)QQ-M-44 Magnesium Alloy AZ31B Condition H24 or H26(M11311)QQ-S-698 Low-Carbon Steel 1010,CR Temper No.4 or 5(G10100)QQ-A-250/4 Aluminum Alloy 2024 T-3 or T-4(A92024)3.Summary of Test Method3.1 This test method consists of a standard test procedure(see 10.1),an alternative Procedure 1(see 10.2),and analternative Procedure 2(see 10.3).The standard test procedureuses washer-shaped metal specimens stacked on the air tube,200 mL of test oil,10 L/h air flow rate,and periodic test oilwithdrawal and evaluation.Alternative Procedure 1 useswasher-shaped metal specimens,165 mL of test oil,10 L/h airflow rate,and no periodic test oil sampling.AlternativeProcedure 2 uses square metal specimens tied toge