ASTM_D_6012_-_03_2021.pdf

Designation:D601203(Reapproved 2021)Standard Test Method forDetermination of Resistance of Leather to(Bleeding)ColorStain Transfer1This standard is issued under the fixed designation D6012;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.Scope1.1 This test method2covers the determination of whetherleather bleeds(exudes coloring matter)when in intimatecontact with wet surfaces,as indicated by staining produced onwet cloth in contact with the leather.This test method does notapply to wet blue.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.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-priate 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 of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3D1610 Practice for Conditioning Leather and Leather Prod-ucts for Testing3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bleedingthe transfer of color from a finished leathersample onto or into another medium.4.Significance and Use4.1 Bleed resistance is considered to be an important char-acteristic in leather used to make lined and unlined items thatmay come in contact with water.5.Apparatus5.1 One or More Assemblies,consisting of a flat glass orplastic square,and same size as transfer pad with a suitableweight placed on top of the square.The combined weight shallbe 100 6 5 g.(An assembly consisting of a plastic or glassplate and a 1 fluid oz(29 cc)plastic or glass jar with plastic lidto which the appropriate amount of lead shot or steel balls isadded has been found suitable.The plate and jar may be heldtogether by a suitable cement or pressure-sensitive adhesivetape.)5.2 Container,flat-bottomed,heat-resistant plastic or othersimilar material with cover of sufficient size to accommodate amaximum of 15 specimens.A container 12 in.(300 mm)long,9 in.(230 mm)wide and 4 in.(100 mm)high has been foundsuitable.5.3 Forced Circulating-Air Oven,capable of maintainingthe required temperature of 38 6 2 C(100.4 6 3.6 F).5.4 Balance,single beam or high speed.5.5 Bleached Cotton Sheeting,42-in.(51.6 mm)squares.6.Test Specimen6.1 The specimen shall be a square of leather 1.0 by 1.0 in.(25 by 25 mm).6.2 Number of DeterminationsUnless otherwise specifiedin the material specification,one specimen from each sampleunit shall be tested.1This test method is under the jurisdiction of ASTM Committee D31 on Leatherand is the direct responsibility of Subcommittee D31.04 on Apparel.Current edition approved Sept.1,2021.Published October 2021.Originallyapproved in 1996.Last previous edition approved in 2013 as D601203(2013).DOI:10.1520/D6012-03R21.2This test method was developed from Federal Test Method Standard No.311Method 3021.2 in cooperation with the U.S.Army Natick Research Developmentand Engineering Center,Natick,MA,and the Defense Personnel Support CenterDirectorate of Clothing and Textiles,Philadelphia,PA.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.4The sole source of supply of the color transfer cloth known to the committee atthis time is Test Fabrics,Inc.,P.O.Box 53,200 Blackford Ave.,Middlesex,NJ08846.If you are aware of alternative suppliers,please provide this information toASTM Headquarters.Your comments will receive careful consideration at a meetingof the responsible technical committee,which you may attend.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 Technical Barriers to Trade(TBT)Committee.17.Procedure7.1 Bring the leather specimen and the color transfer padmade of 4 layers of cotton sheeting to moisture equilibri