1、Designation:D48088(Reapproved 2020)Standard Test Methods forSampling and Testing of Flaked Aluminum Powders andPastes1This standard is issued under the fixed designation D480;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year o
2、f 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.Scope1.1 These test methods cover procedures
3、for sampling,qualitative analysis,and physical testing of flaked aluminumpowders and pastes(leafing and nonleafing)for coatings.1.2 These test methods apply equally to leafing and non-leafing flaked aluminum powders and pastes except wherenoted to the contrary.1.3 The values stated in SI units are t
4、o be regarded as thestandard.The values given in parentheses are for informationonly.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,health,and environmental p
5、ractices and deter-mine the applicability of regulatory limitations prior to use.For a specific hazard statement,see 7.3.1.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDeve
6、lopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D185 Test Methods for Coarse Particles in PigmentsD235 Specification for Mineral Spirits(Petroleum Spirits)(Hydroca
7、rbon Dry Cleaning Solvent)D329 Specification for AcetoneD962 Specification for Aluminum Powder and Paste Pig-ments for PaintsD3980 Practice for Interlaboratory Testing of Paint andRelated Materials(Withdrawn 1998)3E11 Specification for Woven Wire Test Sieve Cloth and TestSievesE34 Test Methods for C
8、hemical Analysis of Aluminum andAluminum-Base Alloys(Withdrawn 2017)3E607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen Atmosphere(Withdrawn 2011)3E691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Te
9、st Method3.Significance and Use3.1 Flaked aluminum pigments are produced in a variety offorms.These test methods allow the user to determine theapplicability of a given product to this use.4.Sampling4.1 Sampling is subject to mutual agreement between theseller and the purchaser.Place each sample in
10、a clean,drymetal or glass container which shall be nearly filled,then closewith a tight cover,seal,mark,and send to the laboratory fortesting.4.2 When requested,duplicate samples may be taken fromthe same container and delivered to the seller,and the inspectormay take a third set of samples to hold
11、for test in case ofdisagreement.5.Qualitative Analysis5.1 Significance and UseThis test method determines ifthere are chemical impurities,other than fatty and oily matter,as specified in Specification D962,to ensure the absence offillers or extender pigments.5.2 Procedure:5.2.1 Total ImpuritiesDeter
12、mine the total impurities byweight in accordance with Test Methods E34 and E607 or byatomic absorption.1These test methods are under the jurisdiction of ASTM Committee D01 onPaint and Related Coatings,Materials,and Applications and are the directresponsibility of Subcommittee D01.31 on Pigment Speci
13、fications.Current edition approved June 1,2020.Published June 2020.Originallyapproved in 1938.Last previous edition approved in 2014 as D480 88(2014).DOI:10.1520/D0480-88R20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annu
14、al 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States
15、This 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(
16、TBT)Committee.5.2.2 Total AluminumDetermine the total aluminum byweight difference with elemental impurities in accordance with5.2.1.6.Leafing Properties6.1 The leafing test conditions specified are selectedarbitrarily,and even though the numerical leafing value ob-tained by this test method appears to be low,the pigment maygive substantially perfect leafing under the conditions ofpractical application in a paint.6.2 Significance and UseThis leafing test method has beenestablished to determine t
