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ASTM_D_3170_-_D_3170M_-_14_2022.pdf

1、Designation:D3170/D3170M14(Reapproved 2022)Standard Test Method forChipping Resistance of Coatings1This standard is issued under the fixed designation D3170/D3170M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revi

2、sion.A number in parentheses indicates the year of lastreapproval.A superscript 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 This test method covers the determination of th

3、e resis-tance of coatings to chipping damage by stones or other flyingobjects.NOTE1This test method is similar to SAE J-400.1.2 All dimensions are nominal unless otherwise specified.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values state

4、d ineach system are not necessarily exact equivalents;therefore,toensure conformance with the standard,each system shall beused independently of the other,and values from the twosystems shall not be combined.1.4 This standard does not purport to address all of thesafety concerns,if any,associated wi

5、th its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized pri

6、nciples 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:2D609 Practice for Preparation of C

7、old-Rolled Steel Panelsfor Testing Paint,Varnish,Conversion Coatings,andRelated Coating ProductsD823 Practices for Producing Films of Uniform Thicknessof Paint,Coatings and Related Products on Test PanelsD1005 Test Method for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD1

8、186 Test Methods for Nondestructive Measurement ofDry Film Thickness of Nonmagnetic Coatings Applied toa Ferrous Base(Withdrawn 2006)3D1400 Test Method for Nondestructive Measurement of DryFilm Thickness of Nonconductive Coatings Applied to aNonferrous Metal Base(Withdrawn 2006)3D1733 Method for Pre

9、paration of Aluminum Alloy Panelsfor Testing Paint,Varnish,Lacquer,and Related Products(Withdrawn 1979)3D2201 Practice for Preparation of Zinc-Coated and Zinc-Alloy-Coated Steel Panels for Testing Paint and RelatedCoating Products2.2 Other Documents:Test for Chip Resistance of Surface Coatings(J-400

10、)43.Summary of Test Method3.1 Standardized road gravel is projected by means of acontrolled air blast at the coated specimens.All testing isconducted under controlled temperature conditions,generallyeither at ambient(room)temperature or at-29 6 3 C-20 65 F.After the gravel impact,tape is applied to

11、remove anyloose coating chips and the degree of chipping is determined.4.Significance and Use4.1 Owners consider chipping of coatings,particularly onthe leading faces and edges of automobile surfaces,unaccept-able.In formulating a coating or coating system to meet servicerequirements,the resistance

12、to chipping damage by flyingobjects such as gravel is one of the properties of importancesince it can vary considerably as other properties are adjusted.Since resistance to chipping decreases at lower temperaturespartly as the result of decreased flexibility,the test may bemore directly related to s

13、ervice conditions by performing it ata low temperature.This test method is designed to produce acontrolled amount of impact by the media on the coated panelin order to enhance reproducibility.1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and

14、 Applications and is the direct responsibility ofSubcommittee D01.55 on Factory Applied Coatings on Preformed Products.Current edition approved July 1,2022.Published July 2022.Originally approvedin 1973.Last previous edition approved in 2014 as D3170 14.DOI:10.1520/D3170_D3170M-14R22.2For referenced

15、 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.o

16、rg.4Available from Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA 15096-0001,http:/www.sae.org.Copyright 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 T

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