ASTM C1729M-2017 Standard Specification for Aluminum Jacketing for Insulation《绝缘铝护套的标准规格》.pdf

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1、Designation: C1729M 16aC1729M 17Standard Specification forAluminum Jacketing for Insulation1This standard is issued under the fixed designation C1729M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A nu

2、mber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers aluminum jacketing for thermal and acoustical insulation operating at either above or belowambient temperatures

3、 and in both indoor and outdoor locations. It does not cover insulation jacketing made from other materialssuch as mastics, fiber reinforced plastic, PVC, or stainless steel nor does it cover the details of thermal or acoustical insulationsystems.1.2 This specification provides physical requirements

4、 for aluminum jacketing for thermal and acoustical insulation. GuideC1423 provides guidance in selecting jacketing materials and their safe use.1.3 This is a material specification and does not imply any performance of the installed system using the materials specifiedherein. For information about i

5、nstallation of aluminum jacketing, see (1).21.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.NOTE 1A version of this specification in inch-pound units is available as Specification C1729.1.5 This standard does not purport t

6、o address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.1.6 This international standard was developed in acco

7、rdance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM S

8、tandards:3B209 Specification for Aluminum and Aluminum-Alloy Sheet and PlateB487 Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross SectionC168 Terminology Relating to Thermal InsulationC450 Practice for Fabrication of Thermal Insulating Fitting Co

9、vers for NPS Piping, and Vessel LaggingC585 Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and TubingC835 Test Method for Total Hemispherical Emittance of Surfaces up to 1400CC1371 Test Method for Determination of Emittance of Materials Near Room Temperature U

10、sing Portable EmissometersC1423 Guide for Selecting Jacketing Materials for Thermal InsulationC1729 Specification for Aluminum Jacketing for InsulationC1785 Test Method for Concentration of Pinhole Detections in Moisture Barriers on Metal JacketingD3363 Test Method for Film Hardness by Pencil TestE8

11、4 Test Method for Surface Burning Characteristics of Building MaterialsF1249 Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor1 This specification is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct r

12、esponsibility of Subcommittee C16.40 on InsulationSystems.Current edition approved Sept. 1, 2016May 1, 2017. Published September 2016May 2017. Originally approved in 2013. Last previous edition approved in 2016 asC1729M 16.C1729M 16a. DOI: 10.1520/C1729M-16A.10.1520/C1729M-17.2 The boldface numbers

13、in parentheses refer to a list of references at the end of this standard.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the A

14、STM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consu

15、lt prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.2 AAMA Standard:4AAMA 2605 Specifi

16、cation, Performance Requirements and Test Procedures for Superior Performing Organic Coatings onAluminum Extrusions and Panels (with Coil Coating Appendix)2.3 ANSI Standard:5ANSI H35.2/H35.2(M) Dimensional Tolerances for Aluminum Mill Products3. Terminology3.1 DefinitionsDefinitions in Terminology C

17、168 apply to terms used in this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 box ribaluminum sheet formed to have alternating parallel grooves and ridges with a cross section approximating asquare wave.3.2.2 cladding (as related to insulation jacketing)synonymous with jacke

18、ting.3.2.2.1 DiscussionThe three terms “jacketing,” “lagging,” and “cladding” are considered synonymous in most metal jacket related applications andgeographies. However, in some cases in the power industry in North America the term “lagging” has a different meaning than“jacketing” or “cladding” and

19、 refers specifically to a heavier gauge of jacketing.3.2.3 crevice corrosionLocalized corrosion of metal jacketing surface at, or immediately adjacent to, an area that is shieldedfrom full exposure to the environment because of close proximity between the metal and the surface of another material.3.

20、2.4 cross crimpedsynonymous with 4.8 mm corrugated.3.2.5 deep corrugatedaluminum sheet formed to have alternating parallel grooves and ridges with a cross sectionapproximating a sine wave.3.2.6 finishthe texture of the aluminum surface.3.2.7 gorejacketing for elbows, fittings, or other non-straight

21、portions of the piping system made from a multitude of similaroverlapping pieces.3.2.8 lagging (as related to insulation jacketing)synonymous with jacketing.3.2.8.1 DiscussionThe three terms “jacketing,” “lagging,” and “cladding” are considered synonymous in most metal jacket related applications an

22、dgeographies. However, in some cases in the power industry in North America the term “lagging” has a different meaning than“jacketing” or “cladding” and refers specifically to a heavier gauge of jacketing.3.2.9 moisture retarder (moister barrier)a layer of plastic film or other material applied to t

23、he inner side of metal jacketingto inhibit jacket corrosion by interfering with the formation of a galvanic cell between the dissimilar metals of the pipe and jacketor by preventing crevice corrosion.3.2.9.1 DiscussionA moisture retarder is not an insulation system water vapor retarder and does not

24、perform the same function.3.2.10 polykrafta multilayer composite film used as a moisture retarder on metal jacketing consisting of at least one layerof minimum 65 g/m2 kraft paper and one or more layers of plastic film, usually polyethylene at a minimum thickness of 38 microns.3.2.11 polyfilmin rela

25、tion to metal jacketing, a three-layer film used as a moisture retarder on metal jacketing consisting ofone layer of ethylene/methacrylic acid copolymer and two layers of other polymers, usually polyethylene.3.2.12 PVdF based paint systema pigmented paint used on the outer surface of metal jacketing

26、 to provide corrosion resistanceand higher emittance than bare metal consisting of a fairly thin primer paint layer covered by a thicker topcoat paint layer wherethe latter is a polyvinylidene fluoride (PVdF) type paint.3.2.13 PVF filma polymer film consisting of polyvinyl fluoride used on the outer

27、 surface of metal jacketing to providecorrosion resistance and higher emittance than bare metal.3.2.14 safety edgean edge of metal jacketing that has been de-burred or rounded by a rolling operation.4 Available from American Architectural Manufacturers Association (AAMA), 1827 Walden Office Square,

28、Suite 550, Schaumburg, IL 60173-4268, http:/www.aamanet.org.5 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.C1729M 1723.2.15 safety hema rounded edge of metal jacketing created by folding the edge of sheet jacketing com

29、pletely back upon itselfusing a roll former or a brake.3.2.15.1 DiscussionThe fold is typically made toward the underside of the jacketing so that the original edge is hidden and the external appearanceof the jacketing is preserved.3.2.16 splice rollmetal jacketing sold in roll form where the packag

30、e contains two separate pieces of metal jacketing rolledapproximately end to end.3.2.16.1 DiscussionA splice roll occurs when the metal coil being used to form the roll jacketing reaches its end before the required roll length isobtained.3.2.17 split rollsynonymous with splice roll.4. Significance a

31、nd Use4.1 This specification is used to specify material by physical property requirements that address the prerequisites in Sections6 to 10. The designer of an insulation system, after determining the system requirements, shall use this specification to specify theappropriate aluminum jacketing.5.

32、Classification5.1 Classification of aluminum jacketing is based on three factors:5.1.1 Outer surface treatment and emittance ():5.1.1.1 Type I = Bare surface, 0.1,5.1.1.2 Type II = Painted with pigmented paint, 0.8,5.1.1.3 Type III = Painted with unpigmented paint, 0.5,5.1.1.4 Type IV = Plastic film

33、 coated surface, 0.85, and5.1.1.5 Type V = Painted with a PVdF based paint system, 0.8.5.1.1.6 PVF film is one kind of plastic film used in Type IV.5.1.1.7 Paint systems for Types II and III must be factory applied and baked on.5.1.1.8 Plastic film for Type IV must be factory applied and heat lamina

34、ted to the surface.5.1.2 Alloy and Temper per Specification B209:5.1.2.1 Grade 1 = Alloy 3105 or 3003, half hard temper (H14 or H24,)5.1.2.2 Grade 2 = Alloy 3105 or 3003, quarter hard temper (H12 - lock forming quality),5.1.2.3 Grade 3 = Alloy 1100, dead soft temper,5.1.2.4 Grade 4 = Alloy 3004,5.1.

35、2.5 Grade 5 = Alloy Alclad 3004 (alloy 3004 clad both sides with alloy 7072 for improved corrosion resistance), and5.1.2.6 Grade 6 = Alloy 5052.5.1.3 Moisture Retarder:5.1.3.1 Class A = polyfilm, 76 microns thick,5.1.3.2 Class C = polykraft per section 3.2.10,5.1.3.3 Class D = painted, and5.1.3.4 Cl

36、ass E = no moisture retarder.NOTE 2Class B was removed in 2011 because it was not used or produced. The remaining Classes were not renumbered to avoid conflicts withengineering specifications that reference the remaining Classes.6. Materials and Manufacture6.1 Aluminum jacketing materials are compos

37、ed of a single material or a lamination of several components. The materials aresupplied in the form of rolls or sheets or preformed to fit the surface to which they are to be applied. The materials are appliedin the field or as a factory-applied composite with the insulation.6.2 The primary materia

38、l shall be aluminum and shall have a finish that is smooth, 4.8 mm corrugated, or stucco embossed. Thedimensions of corrugations (pitch and depth) must be agreed to by manufacturer and purchaser to achieve interchangeability,constant rigidity, and appearance.6.3 When agreed upon by purchaser and sel

39、ler, aluminum sheets used as pipe insulation jacketing (see 8.2) shall have a safetyedge or a 10 15 mm safety hem along one entire width edge of the sheet. Aluminum jacketing with a safety edge or safety hemmust still meet the length dimensions specified in 8.2.1. A safety hem shall not be specified

40、 when the finish is 4.8 mm corrugated.C1729M 1736.4 In most cases, the inner surface of aluminum jacketing material is coated or covered with a moisture resistant film to retardpossible galvanic or chemical corrosion, or both, of the jacketing.6.5 Polyfilm (Class A) and polykraft (Class C) must be f

41、actory applied and heat laminated to the interior surface of the metaljacketing.6.6 For highly corrosive ambient conditions or to increase emittance, the purchaser shall specify that the outer surface of thealuminum be coated with a pigmented paint (Type II), unpigmented paint (Type III), a plastic

42、film (Type IV), or with a PVdF basedpaint system (Type V).6.7 Pigmented paint (Type II), unpigmented paint (Type III), and PVdF based paint systems (Type V) must be factory appliedand baked on to the outer surface.6.8 The topcoat of the factory applied PVdF based paint systems (Type V) must contain

43、at least seventy percent (70 %) byweight of polyvinylidene fluoride (PVdF) resin based on the total weight of resins present and at least forty percent (40 %) byweight of PVdF resin based on the total weight of solids present in the coating composition. The full PVdF based paint systemmust meet the

44、application and performance requirements of the AAMA 2605.6.9 Unless agreed to otherwise by purchaser and seller of the metal jacketing, the primer layer for Type V outer surfacetreatment must have a minimum dry thickness of 5 microns and the PVdF topcoat must have a minimum dry thickness of 18micro

45、ns.NOTE 3It is important to be aware that the minimum 18 micron thickness requirement in Table 1 applies to the topcoat of the Type V PVdF basedpaint system and not to the total outer surface paint thickness.6.10 Plastic film (Type IV), including PVF film, must be factory applied to the metal jacket

46、ing outer surface using heatlamination with a thermally activated adhesive.6.11 Plastic film (Type IV), including PVF film, must be a minimum of 38 microns thick.6.12 The aluminum used in this jacketing, with the exception of box rib, shall be manufactured from Specification B209, alloys3003, 3105,

47、or 1100 with tempers of H14 or H24 (half hard), H12 (quarter hard), or dead soft Grades 1, 2, or 3 per 5.1.2.6.13 Aluminum jacketing shall be specified by the thickness of the aluminum layer which shall be in the range from 0.4 to 1.3mm.NOTE 4The thickness values mentioned in 6.126.13, 6.136.14, 6.1

48、46.15, and 6.156.16 are nominal thickness. The tolerances shown in Table 2 applyto these listed nominal values.TABLE 1 Physical PropertiesType I II or V III IVGrade All All All AllClass A C D E A C D E A C D E A C D EEmittance 0.1 0.1 0.1 0.1 0.8 0.8 0.8 0.8 0.5 0.5 0.5 0.5 0.85 0.85 0.85 0.85Surfac

49、eBurning(flame/smoke max)25/50 25/50 25/50 25/50 25/50 25/50 25/50 25/50 25/50 25/50 25/50 25/50 25/50 25/50 25/50 25/50Moistureretarderpinholedectections#5 #5 #5 n.a. #5 #5 #5 n.a. #5 #5 #5 n.a. #5 #5 #5 n.a.MoistureretarderWVTR(g/m2/day)#1.55 #17 n.a. n.a. #1.55 #17 n.a. n.a. #1.55 #17 n.a. n.a. #1.55 #17 n.a. n.a.Outer PaintThickness(microns)n.a. n.a. n.a. n.a. 1820 1820 1820 1820 810 810 810 810 n.a. n.a. n.a. n.a.Outer PaintPencilHardness(min)n.a. n.a. n.a n.a. H H H H H H H H n.a n.a n.a. n.a.C1729M 1746.14