ASTM_D_1748_-_22.pdf

Designation:D174822Standard Test Method forRust Protection by Metal Preservatives in the HumidityCabinet1This standard is issued under the fixed designation D1748;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.1.Scope*1.1 This test method covers the evaluation of the rust-preventive properties of metal preservatives under conditionsof high humidity.1.2 The values stated in SI units are to be regarded as thestandard except where the test apparatus or consumable partsare only available in other units.In such cases these will beregarded as standard.The values given in parentheses are forinformation only.1.3 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 consult andestablish appropriate safety,health,and environmental prac-tices and determine the applicability of regulatory limitationsprior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2A109/A109M Specification for Steel,Strip,Carbon(0.25Maximum Percent),Cold-RolledD512 Test Methods for Chloride Ion In Water(Withdrawn2021)3D516 Test Method for Sulfate Ion in WaterE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE323 Specification for Perforated-Plate Sieves for TestingPurposes2.2 Federal Standards:4QQ-S-698 Steel Sheet and Strip,Low Carbon2.3 Military Standards:5MIL-C-5646F Cloth,AirplaneMIL-C-15074E Corrosive Preventive Compound FingerPrint Remover2.4 SAE International:6SAE 1009C Tee Reducer,Bulkhead on Side,Flareless Tube3.Summary of Test Method3.1 Steel panels are prepared to a prescribed surface finish,dipped in the test oil,allowed to drain,and then suspended ina humidity cabinet at 48.9 C(120 F)for a specified numberof hours.The oil fails or passes the test in accordance with thesize and number of rust dots on the test surfaces of the panels.4.Significance and Use4.1 This test method is used for measuring the relativeabilities of metal preservatives to prevent the rusting of steelpanels under conditions of high humidity.It should not berelied upon to predict the effectiveness of a metal preservativein which high humidity is not the principal factor in the rusting.4.2 Comparisons made by this test method should normallybe limited to similar metal preservative combinations designedfor similar applications.The test life required for each type ofmetal preservative and for each intended application should bebased on actual experience with that type of preservative in theintended service.4.3 Since the precision of the test method appears to be lessthan desired,a number of repeat tests may be necessary to1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.L0.03 on Corrosion Testing of Sheet Metal Processing Fluids.Current edition approved May 1,2022.Published May 2022.Originallyapproved in 1960.Last previous edition approved in 2015 as D1748 10(2015).DOI:10.1520/D1748-22.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401,http:/www.access.gpo.gov.5Available from https:/quicksearch.dla.mil/qaSearch.aspx.6Available from SAE International(SAE),400 Commonwealth Dr.,Warrendale,PA 15096,http:/www.sae.org.*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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1establish the test life of a given metal preservative,and repeattests by this test method in more than one cabinet aresometimes desirable.4.4 The data obtained from this accelerated test is of interestonly in eliminating the mo