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ASTM_D_3794_-_18.pdf

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1、Designation:D379418Standard Guide forTesting Coil Coatings1This standard is issued under the fixed designation D3794;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

2、 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 This guide covers procedures for testing coil coatings.The test methods included are listed in

3、 Table 1.Where morethan one test method is listed for the same characteristic,noattempt is made to indicate superiority of one method overanother.Selection of test methods to be followed must begoverned by the requirements in each individual case,togetherwith agreement between the producer and user.

4、1.2 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.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 establish appro-priat

5、e safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior 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

6、 of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2B117 Practice for Operating Salt Spray(Fog)ApparatusB368 Test Method for Copper-Accelerated Acetic Acid-SaltSpray(Fog)Test

7、ing(CASS Test)C1371 Test Method for Determination of Emittance ofMaterials Near Room Temperature Using Portable Emis-sometersC1549 Test Method for Determination of Solar ReflectanceNearAmbient Temperature Using a Portable Solar Reflec-tometerD522 Test Methods for Mandrel Bend Test of AttachedOrganic

8、 CoatingsD523 Test Method for Specular GlossD610 Practice for Evaluating Degree of Rusting on PaintedSteel SurfacesD660 Test Method for Evaluating Degree of Checking ofExterior PaintsD661 Test Method for Evaluating Degree of Cracking ofExterior PaintsD714 Test Method for Evaluating Degree of Blister

9、ing ofPaintsD822 Practice for Filtered Open-Flame Carbon-Arc Expo-sures of Paint and Related CoatingsD823 Practices for Producing Films of Uniform Thicknessof Paint,Coatings and Related Products on Test PanelsD870 Practice for Testing Water Resistance of CoatingsUsing Water ImmersionD968 Test Method

10、s for Abrasion Resistance of OrganicCoatings by Falling AbrasiveD1005 Test Method for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD1014 Practice for Conducting Exterior Exposure Tests ofPaints and Coatings on Metal SubstratesD1193 Specification for Reagent WaterD1200 Test

11、 Method for Viscosity by Ford Viscosity CupD1210 Test Method for Fineness of Dispersion of Pigment-Vehicle Systems by Hegman-Type GageD1212 Test Methods for Measurement of Wet Film Thick-ness of Organic CoatingsD1308 Test Method for Effect of Household Chemicals onClear and Pigmented Organic Finishe

12、sD1474 Test Methods for Indentation Hardness of OrganicCoatingsD1475 Test Method for Density of Liquid Coatings,Inks,and Related ProductsD1654 Test Method for Evaluation of Painted or CoatedSpecimens Subjected to Corrosive EnvironmentsD1729 Practice for Visual Appraisal of Colors and ColorDifference

13、s of Diffusely-Illuminated Opaque MaterialsD1735 Practice for Testing Water Resistance of CoatingsUsing Water Fog Apparatus1This guide is under the jurisdiction of ASTM Committee D01 on Paint andRelated Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.53 on Coi

14、l Coated Metal.Current edition approved June 1,2018.Published June 2018.Originallyapproved in 1979.Last previous edition approved in 2017 as D3794 17.DOI:10.1520/D3794-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual

15、Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.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

16、 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.1 D1823 Test Method for Apparent Viscosity of Plastisols andOrganosols at High Shear Rates by Extrusion ViscometerD1824 Test Method for Apparent Viscosity of Plastisols andOrganosols at Low Shear RatesD2092 Guide for Preparation of Zinc-Coated(Galvanized)Steel Surfaces for

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