1、Designation:D464920Standard Guide forUse of Stretch Films and Wrapping Application1This standard is issued under the fixed designation D4649;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 parent
2、heses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide covers recommended guidelines for theselection,specification,and use of stretch films for unitizing,reinforcing,and palletizing for indoor envir
3、onments.This caninclude storage or transport,or both,in warehouses,closedcontainers such as truck trailers or rail boxcars,and associatedtransfer terminals.This guide does not cover the performanceissues associated with outdoor exposure.1.1.1 Performance characteristics of stretch film may benegativ
4、ely affected by extreme temperatures.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
5、 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 acco
6、r-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 St
7、andards:2D882 Test Method for Tensile Properties of Thin PlasticSheetingD907 Terminology of AdhesivesD996 Terminology of Packaging and Distribution Environ-mentsD1003 Test Method for Haze and Luminous Transmittanceof Transparent PlasticsD1505 Test Method for Density of Plastics by the Density-Gradie
8、nt TechniqueD1746 Test Method for Transparency of Plastic SheetingD1894 Test Method for Static and Kinetic Coefficients ofFriction of Plastic Film and SheetingD1922 Test Method for Propagation Tear Resistance ofPlastic Film and Thin Sheeting by Pendulum MethodD2103 Specification for Polyethylene Fil
9、m and SheetingD2457 Test Method for Specular Gloss of Plastic Films andSolid PlasticsD2578 Test Method for Wetting Tension of Polyethylene andPolypropylene FilmsD2863 Test Method for Measuring the Minimum OxygenConcentration to Support Candle-Like Combustion ofPlastics(Oxygen Index)D3951 Practice fo
10、r Commercial PackagingD4321 Test Method for Package Yield of Plastic FilmD4470 Test Method for Static ElectrificationD5331 Test Method for Evaluation of Mechanical Handlingof Unitized Loads Secured with Stretch Wrap FilmsD5414 Test Method for Evaluation of Horizontal ImpactPerformance of Load Unitiz
11、ing Stretch Wrap FilmsD5415 Test Method for Evaluating Load Containment Per-formance of Stretch Wrap Films by Vibration TestingD5416 Test Method for Evaluating Abrasion Resistance ofStretch Wrap Films by Vibration TestingD5458 Test Method for Peel Cling of Stretch Wrap FilmD5459 Test Method for Mach
12、ine Direction Elastic Recoveryand Permanent Deformation and Stress Retention ofStretch Wrap FilmD5748 Test Method for Protrusion Puncture Resistance ofStretch Wrap FilmD8314 Guide for Performance Testing of Applied StretchFilms and Stretch WrappingE96/E96M Test Methods for Water Vapor Transmission o
13、fMaterialsE284 Terminology of Appearance3.Terminology3.1 DefinitionsTerminology found in Terminology D996shall apply.1This guide is under the jurisdiction ofASTM Committee D10 on Packaging andis the direct responsibility of Subcommittee D10.25 on Palletizing and Unitizing ofLoads.Current edition app
14、roved Oct.1,2020.Published January 2021.Originallyapproved in 1987.Last previous edition approved in 2016 as D4649 03(2016).DOI:10.1520/D4649-20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volu
15、me 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 principles on standardiza
16、tion 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.14.Significance and Use4.1 This guide is for user selection,specification,andapplication of stretch film materials.It may be used betweenthe buyer and seller to arrive at purchase specifications.5.Stretch Film Classification5.1 Stretch Film UsesThe following are general uses ofstretch films.5.1.1 U
