1、Designation: D5168 12Standard Practice forFabrication and Closure of Triple-Wall CorrugatedFiberboard Containers1This standard is issued under the fixed designation D5168; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of
2、 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 Department of Defense.1. Scope1.1 This practice covers the fabrication
3、 and closure of newtriple-wall corrugated fiberboard containers.1.2 This practice indicates the factors and components thatmust be controlled in the manufacture of triple-wall fiberboardcontainers.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parenthese
4、s are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.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 saf
5、ety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D996 Terminology of Packaging and Distribution Environ-mentsD3950 Specification for Strapping, Nonmetallic (and Join-ing Methods)D3951 Practice for Commercial P
6、ackagingD3953 Specification for Strapping, Flat Steel and SealsD4675 Guide for Selection and Use of Flat StrappingMaterialsD4727/D4727M Specification for Corrugated and SolidFiberboard Sheet Stock (Container Grade) and Cut ShapesD5330/D5330M Specification for Pressure-Sensitive Tapefor Packaging, Fi
7、lament-ReinforcedD5486/D5486M Specification for Pressure-Sensitive Tapefor Packaging, Box Closure, and SealingSI 10 American National Standard for Use of the Interna-tional System of Units (SI): The Modern Metric System2.2 TAPPI Standards:3T411 Test Method for Thickness of Paper and PaperboardT 803
8、Puncture and Stiffness Test of Container BoardT 810 Bursting Strength of Corrugated and Solid FiberboardT811 Edgewise Compression Strength of Corrugated Fiber-board (Short Column Test)T 812 Ply Separation of Solid and Corrugated Fiberboard(Wet)2.3 Code of Federal Regulations:4CFR Parts 107-180 Title
9、 49, Hazardous Materials Regula-tions2.4 Other Standards:National Motor Freight Classification5Uniform Freight Classification62.5 Use of Other Specifications:2.5.1 Nothing in this practice shall be construed to prohibitthe use of containers of special design or of fiberboardcontainers identified by
10、package number in the currentUniform Freight Classification and National MotorFreight Classification when in the experience and judg-ment of the purchaser, the nature of the articles or materialto be shipped justifies such containers.2.5.2 Exceptional commodities may require better contain-ers than
11、are specified herein. Containers for explosivesand dangerous articles shall comply with the specifica-tions prescribed in the Department of Transportations(DOT) Office of Hazardous Materials Code of FederalRegulations, Title 49 CFR Parts 107-180. In addition, forthe particular articles to which thes
12、e regulations apply, ifthe requirements contained in this practice are morestringent, then they must also meet the requirements1This practice is under the jurisdiction of ASTM Committee D10 on Packagingand is the direct responsibility of Subcommittee D10.27 on Paper and PaperboardProducts.Current ed
13、ition approved May 1, 2012. Published June 2012. Originallyapproved in 1991. Last previous edition approved in 2009 as D5168 09. DOI:10.1520/D5168-12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStand
14、ards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Technical Association of the Pulp and Paper Industry (TAPPI),15 Technology Parkway South, Norcross, GA 30092, http:/www.tappi.org.4Available from U.S. Government Printing Office Superintendent of
15、 Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.5Available from National Motor Freight Traffic Association (NMFTA), 1001 N.Fairfax St., Alexandria, VA 22314, http:/www.nmfta.org.6Available from Short Line and Regional Railroad Association, 50 F Stree
16、t,N.W., Suite 7020, Washington, DC 200011536.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.specified herein. (The DOT regulations apply to sucharticles as explosives, flammable liquids and solids, com-pressed gases, oxidizing mater
17、ials, poisons, and so forth).3. Terminology3.1 DefinitionsGeneral definitions for packaging arefound in Terminology D996.4. Significance and Use4.1 Triple-wall corrugated fiberboard containers are used tounitize products into containers of size and shape suitable formanual or mechanical handling and
18、 to protect the contentsagainst environmental, handling, shipping, and storage condi-tions.4.2 This practice is intended to cover some of the basicconstructions and styles of commercially available triple-wallfiberboard packaging used to unitize and protect contents.5. Style5.1 Style ARegular slotte
19、d container or alternate construc-tion, regular slotted container with crushed flaps (see Fig. 1).5.2 Style BFull telescope container (see Fig. 2).5.3 Style CHalf regular slotted container with short topflaps and cover or alternate construction (see Fig. 3).6. Requirements6.1 ClassesTriple-wall corr
20、ugated fiberboard containersmay be furnished in the following classes, styles, and types ofends, as specified:6.1.1 CFNon-weather-resistant containers are for domes-tic shipments and storage in known, favorable conditions.FIG. 1 Style A BoxFIG. 2 Style B BoxD5168 1226.1.2 CGNon-weather resistant con
21、tainers for govern-ment shipments and storage in known, favorable conditions.6.1.3 CFWRWeather-resistant containers are for exportshipments and storage where high humidities or extremeclimatic conditions may be encountered.6.1.4 CGWRWeather-resistant containers are for govern-ment export shipments a
22、nd storage where high humidities orextreme climatic conditions may be encountered.6.1.5 CFFRFire-Retardant ContainersWhen specified,triple-wall containers shall use materials as specified in Speci-fication D4727/D4727M, Variety TW, class WR/FR.6.1.6 CGFRFire-Retardant ContainersWhen specified,triple
23、-wall containers shall use materials as specified in Speci-fication D4727/D4727M, Variety TW, class WR/FR.6.2 Materials:6.2.1 FiberboardThe fiberboard shall consist of threecorrugated mediums and four facings fabricated into a triple-wall structural material.6.2.1.1 Corrugating Mediums:(1) Weight of
24、 MediumsThe weight of material used tofabricate the corrugated medium shall be no less than 26lb/1000 ft2(127 g/m2), or as otherwise specified.(2) Flute ArrangementThere shall be two A Flutes, withthe remaining flute being either A or C Flute. Flute arrange-ment shall be agreed upon between the purc
25、haser and thesupplier. In accordance with Department of Defense require-ments, the flute combination shall be C-A-A (or meet equiva-lent performance levels).6.2.1.2 FacingsThe combined weight of facings for ClassCG, CGWR and CGFR shall be not less than 264 lb/1000ft2(1289 g/m2), with the heaviest fa
26、cings on the outside. Forboxes made to the puncture strength requirement the minimumcombined weight of facings shall be as shown in Table 1. Thereis no facing weight requirement for boxes made to the ECTstrength requirement. (Note an exception for grades 1100 CG,1100 CGWR and 1100 CGFR, which have b
27、asis weight,puncture, and ECT requirements.) For weather-resistant boxes,Classes CFWR and CGWR, the outer facings shall be highlywater-resistant paperboard which has been treated with asuitable high-grade, wet strength resin. For Class CGWR, thewater-resistant paperboard shall have a 35 % minimum we
28、tmullen retention versus dry mullen when tested in accordancewith TAPPI T 810 and T 812.6.2.2 CaliperThe thickness of the finished Class CG,CGWR and CGFR fiberboard shall be no less than 0.525 in.(13.3 mm), when tested in accordance with TAPPI T411.6.2.3 Board Strength:6.2.3.1 Puncture ResistanceThe
29、 fiberboard shall have aminimum puncture test value as is shown in Table 2 whentested in accordance with TAPPI T 803. Only one puncturereading on each specimen may fall below the allowableminimum and that reading shall be not more than 10 % belowthe allowable minimum reading.6.2.3.2 Short Column Cru
30、shThe short column crushstrength (ECT) of the class 1100 CG, 1100 CGWR and 1100CGFR fiberboard shall not have a minimum average that is lessthan is shown in Table 2 when tested in accordance with TAPPIT811. For all other types and classes, the ECT values shown inTable 2 are minimum values. Only one
31、ECT reading in aspecimen may fall below the allowable minimum and thatreading shall not be more that 10% below the allowableminimum reading.6.2.4 Adhesive:6.2.4.1 For non-weather-resistant containers, the facingsand corrugated medium shall be securely bonded with adhesiveover the entire area of cont
32、act.6.2.4.2 For weather-resistant containers, in addition to therequirements specified in 6.2.4.1, the adhesive shall be of thewater-resistant type and the fiberboard shall show no plyseparation greater than14 in. (6 mm) when tested in accordancewith TAPPI T 812.FIG. 3 Style C BoxTABLE 1 Size and We
33、ight Limitations for CF, CFWR/FR, CG, and CGWR/FR Classes of Fiberboard BoxesType TW Combined WeightFacings Only, min.(SF is total weightof plies)Max Weight of Boxesand ContentsMax Outside DimensionsLength + Width + DepthClasses CFand CFWR/FRClasses CGCGWR/FRlb/1000ft.2g/m2 lbs kg in. mm700 168 820
34、240 109 110 2794900 222 1083 260 118 115 29211100 264 1289 280 127 120 30481100 264 1289 280 127 120 30481300 360 1758 300 136 125 3175D5168 1236.2.5 Metal Fasteners (3x)Metal fasteners shall be com-mercially pre-formed staples or staples formed from commer-cial steel stitching wire. All metal faste
35、ners shall havecommercially-applied coating of zinc or copper wash.6.3 DimensionsDimensions of the containers furnishedshall be as specified (see 7.1.3). Unless otherwise specified, thecontainer dimensions shall be inside measurements with atolerance of 614 in. (6 mm). Maximum dimensions are shownin
36、 Table 1, see also 7.2.6.4 CertificationThe manufacturer shall furnish the pro-curing activity with certification that containers furnishedunder this specification meet the requirements specified herein.6.5 Style A Containers:6.5.1 ConstructionConstruction shall be in accordancewith Fig. 1 (regular-
37、slotted container). This container shall beone piece of triple-wall corrugated fiberboard scored andslotted (slots shall have a minimum width of38 in. (10 mm) toform a body piece having four flaps for closing each of twoopposite faces. The flaps along the longer edge are the outerflaps, and those al
38、ong the shorter edge are the inner flaps. Flapsshall not project beyond the edge of the container. All lengthflaps shall be equal in length, and all width flaps shall be equalin length. The outer flaps shall not overlap when closed norhave a gap to exceed12 in. (12.7 mm). The body joint(manufacturer
39、s joint) overlap shall be not less than 2 in. (50mm) wide, and both the overlap and the overlapped portion ofthe body shall be crushed prior to stapling or gluing. Thecontainer may be constructed from two sheets of triple-wallcorrugated fiberboard only when the board manufacturersmachinery is incapa
40、ble of producing sheets of a size suitablefor single-sheet construction. When two-piece construction isutilized, the two body joints shall be on diagonally oppositeedges. When metal staples are used they shall be placedapproximately on a 45 angle across the overlap and shall beplaced not more than 1
41、 in. (25 mm) apart. The 1-in. measure-ment shall be from the lower tip on one staple to the top tip ofthe staple directly below. The first and last staple shall beplaced34 614 in. (20 6 7 mm) from the end of the overlap.When the joint is glued, there shall be a minimum of 75 % fibertear of the overl
42、ap area when pulled apart. The direction of theflutes shall be vertical in the sides and ends of the container.There shall be no surface breaks in the board when folded 180along the score line parallel to the flute direction and 90 alongthe score line perpendicular to the flute direction.6.5.2 Alter
43、nate Construction:6.5.2.1 When specified, Style A containers shall be fur-nished with a 112-in. (36-mm) overlap on the outside top andbottom flaps. The overlapped areas of the flaps shall be crushed(see Fig. 1).6.5.2.2 When specified, the score lines of the inner flaps,die-cut only, of Style A conta
44、iners shall be offset a distance ofthe thickness of the board from the score lines of the outerflaps.6.5.2.3 When specified, all flaps shall be crushed or scoredadjacent to the score line approximately 212 in. (65 mm) widealong the entire length of the flap to facilitate closure of thecontainer flap
45、.6.6 Style B Containers:6.6.1 ConstructionConstruction shall be in accordancewith Fig. 2 (full telescope container). The container shallconsist of a body and a cover, each being one piece of slottedand scored triple-wall corrugated fiberboard. The inside depthof the cover shall be the overall depth
46、of the body. When set up,the flaps shall not overlap and shall be fastened to the sidewalls of the container with staples, or, when specified, bygluing. The arrangement of the staples shall be as shown in Fig.2, and each flap shall have not less than four staples. Thestaples shall be not more than 1
47、12 in. (36 mm) nor less than 1in. (25 mm) from the free edges of the flaps. The spacing of thestaples around the edge of each flap shall be not more than 5 in.(127 mm) from the center of one staple to the center of the nextstaple. When flaps are glued, there shall be a minimum of 75 %fiber tear of t
48、he overlap area when pulled apart. There shall beno surface breaks in the board when folded 90 along the scoreline.6.7 Style C Container:6.7.1 ConstructionConstruction shall be in accordancewith Fig. 3. This is a two-piece triple-wall corrugated fiber-board container consisting of a half slotted con
49、tainer body withtop flaps 4 in. (102 mm) long and a separate flanged cover.Stapling or gluing for the body shall meet the requirements of6.5.1, and for the cover shall meet the requirements of 6.6.1.The cover shall be at least 6 in. (152 mm) deep. The directionof the flutes shall be vertical in the sides and ends of thecontainer. There shall be no surface breaks in the board whenfolded 180 along the score line parallel to the flute direction,and 90 along the score line perpendicular to the flute di
