ASTM C552-2007 Standard Specification for Cellular Glass Thermal Insulation《蜂窝状玻璃隔热材料的标准规范》.pdf

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1、Designation: C 552 07Standard Specification forCellular Glass Thermal Insulation1This standard is issued under the fixed designation C 552; 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 pare

2、ntheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 specification covers the composition, sizes, dimen-sions, and

3、physical properties of cellular glass thermal insula-tion intended for use on surfaces operating at temperaturesbetween 450 and 800F (268 and 427C). Special fabrica-tion or techniques for pipe insulation, or both, may be requiredfor application in the temperature range from 250 to 800F(121 to 427C).

4、 Contact the manufacturer for recommenda-tions regarding fabrication and application procedures for usein this temperature range. For specific applications, the actualtemperature limits shall be agreed upon between the manufac-turer and the purchaser.1.2 It is anticipated that single-layer pipe insu

5、lation in halfsections or the inner layer of a multilayer system may exhibitstress cracks above 250F (122C).1.3 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are providedfor information and may be approximate.1.4 This standard does not purpo

6、rt 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 and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 16

7、5 Test Method for Measuring Compressive Propertiesof Thermal InsulationsC 168 Terminology Relating to Thermal InsulationC 177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC 203 Test Methods for Breaking Load and Fl

8、exural Prop-erties of Block-Type Thermal InsulationC 240 Test Methods of Testing Cellular Glass InsulationBlockC 302 Test Method for Density and Dimensions of Pre-formed Pipe-Covering-Type Thermal InsulationC 303 Test Method for Dimensions and Density of Pre-formed Block and BoardType Thermal Insula

9、tionC 335 Test Method for Steady-State Heat Transfer Proper-ties of Pipe InsulationC 390 Practice for Sampling and Acceptance of ThermalInsulation LotsC411 Test Method for Hot-Surface Performance of High-Temperature Thermal InsulationC 450 Practice for Fabrication of Thermal Insulating FittingCovers

10、 for NPS Piping, and Vessel LaggingC 518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC 585 Practice for Inner and Outer Diameters of RigidThermal Insulation for Nominal Sizes of Pipe and Tubing(NPS System)C 692 Test Method for Evaluating the I

11、nfluence of ThermalInsulations on External Stress Corrosion Cracking Ten-dency of Austenitic Stainless SteelC 795 Specification for Thermal Insulation for Use in Con-tact with Austenitic Stainless SteelC 871 Test Methods for Chemical Analysis of ThermalInsulation Materials for Leachable Chloride, Fl

12、uoride,Silicate, and Sodium IonsC 1045 Practice for Calculating Thermal TransmissionProperties Under Steady-State ConditionsC 1058 Practice for Selecting Temperatures for Evaluatingand Reporting Thermal Properties of Thermal InsulationC 1114 Test Method for Steady-State Thermal TransmissionPropertie

13、s by Means of the Thin-Heater ApparatusC 1639 Specification for Fabrication Of Cellular Glass PipeAnd Tubing InsulationD 226 Specification for Asphalt-Saturated Organic FeltUsed in Roofing and WaterproofingD 312 Specification for Asphalt Used in RoofingE84 Test Method for Surface Burning Characteris

14、tics ofBuilding Materials1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.20 onHomogeneous Inorganic Thermal Insulations.Current edition approved Dec. 1, 2007. Published December 2007. Originallyapproved in

15、1965 to replace C 381 58 and C 343 56. Last previous editionapproved in 2003 as C 552 03.2For 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 Summ

16、ary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.E 96/E 96M Test Methods for Water Vapor Transmission ofMaterials2.2 ISO Document:ISO 3951 Sampling Procedure and Charts for Inspection byVariables for Percen

17、t Defective33. Terminology3.1 For definitions used in this specification, see Terminol-ogy C 168.3.2 Definitions of Terms Specific to This Standard:3.2.1 boardfabricated sections of cellular glass adheredand together covered with a facing such as a laminated kraftpaper adhered to both faces.4. Class

18、ification44.1 Cellular glass insulation is furnished in the followingtypes:4.1.1 Type IFlat block manufactured,4.1.2 Type IIPipe and tubing insulation fabricated fromType I,4.1.3 Type IIISpecial shapes fabricated from Type I,4.1.4 Type IVBoard fabricated from Type I,NOTE 1Types not listed here may n

19、ot be commercially available.These would be considered special order items.5. Ordering Information5.1 Purchase orders for cellular glass insulation furnished tothis specification shall include the following information:5.1.1 Type designation (see 4.1),5.1.2 Dimensions according to type (see Section

20、9), and5.1.3 Jacketing when required.5.2 Any special requirements, such as, type, fabricationcombinations not listed in accordance with Section 4, non-standard dimensions in accordance with Section 9, inspectionrequirements in accordance with Section 13, or certificationrequirements in accordance wi

21、th Section 16 shall be agreedupon between the purchaser and the supplier and stated in thepurchase contract.6. Materials and Manufacture6.1 The block material shall consist of a glass compositionthat has been foamed or cellulated under molten conditions,annealed, and set to form a rigid noncombustib

22、le material withhermetically sealed cells. The material shall be trimmed intoblocks of standard dimensions that are rectangular or tapered.6.2 Special shapes and pipe covering shall be fabricatedfrom blocks in accordance with Practices C 450, C 585 andSpecification C 1639.6.3 Board, tapered or flat,

23、 shall be fabricated from blocks.7. Physical Properties7.1 The cellular glass insulation shall conform to the physi-cal requirements in Table 1. Contact the manufacturer forspecific design recommendations for all material types.8. Qualification Requirements8.1 The following requirements are generall

24、y employed forthe purpose of initial material or product qualification for TypeI, Block Material:8.1.1 Compressive strength.8.1.2 Flexural strength.8.1.3 Water absorption.8.1.4 Water vapor permeability.8.1.5 Thermal conductivity.8.1.6 Hot-surface performance.8.1.7 Surface burning characteristics.8.2

25、 The following requirements are generally employed forqualification of Type II, pipe and tubing insulation:8.2.1 Thermal Conductivity.8.2.2 Type II, pipe and tubing insulation shall be fabricatedfrom material having met the qualification requirements ofType I.8.3 Type III and Type IV material shall

26、be fabricated frommaterial having met the qualification requirements of Type I.9. Dimensions, Mass, and Permissible Variations9.1 Type I, Flat BlockBlocks shall be nominal rectangularsections. Block size is 18 in. (457 mm) in width, 24 in. (610mm) in length, and 1.5 to 6 in. (38 to 152 mm) in thickn

27、ess.Tapered block has the same dimensions, is tapered on the24-in. (610-mm) side, with tapers of18 ,14 ,or12 in./ft (3, 6,or 13 mm per 0.3 m). (Other block dimensions and thicknessmust be agreed upon between the purchaser and the supplier.)9.2 Type II, Pipe and Tubing InsulationSee SpecificationC 16

28、39.9.3 Type III, Special ShapesDimensions of special shapesshall be as agreed upon between the supplier and the purchaser.9.4 Type IV, BoardDimensions of board shall be agreedupon between the purchaser and the supplier. Boards areavailable typically as 24 in. (610 mm) wide by 48 in. (1219mm) long by

29、 1.5 in. (38 mm), or 3 in. (76 mm) thick.9.5 Dimensional Tolerances:9.5.1 For Types I and IV, the average measured length,width, and thickness tolerances shall be in accordance withthose listed in Table 2.9.5.2 For Type II, the dimensional tolerances are given inTable 3.9.5.3 For Type III, dimension

30、al tolerances shall be agreedupon between the purchaser and the supplier.9.5.4 For Types I, II, and IV, special dimensional tolerancesshall be agreed upon between the purchaser and the supplier asstated in the purchase contract.10. Workmanship, Finish and Appearance10.1 Since some requirements for t

31、his material are noteasily specified by numerical value, the insulation shall haveno visible defects that will adversely affect its service qualities.11. Sampling11.1 The insulation shall be sampled for the purpose oftesting in accordance with Practice C 390. Any specific provi-sions for sampling sh

32、all be agreed upon between the purchaserand the supplier.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.4Type and grade designations are in accordance with Form and Style for ASTMStandards, Part B, 10th ed., Section B8., January 1996.C55207

33、212. Test Methods12.1 All cellular glass is produced initially in block form.When special shapes are required, cellular glass is fabricatedinto pipe, curved or segmental insulation, precision V-grooved(material specifically cut to fit around the exterior surface ofpiping or equipment with no gaps),

34、or board. All initialqualification testing shall be made on block specimens. Alltests shall be conducted on specimens with no surface mois-ture. The properties referenced in this specification shall bedetermined in accordance with the following test methods:12.2 Density:12.2.1 Type IBlock insulation

35、: Test Method C 303.12.2.2 Type IIPipe insulation: Test Method C 302.12.3 Thermal ConductivityMake determinations at fourmean temperatures in accordance with Practice C 1058. Usethe results of these tests to calculate thermal transmissionproperties in accordance with Practice C 1045.NOTE 2At this ti

36、me, tested values cannot be achieved for belowambient temperatures for Type II pipe insulation due to the lack of a testapparatus measuring radial heat flow in accordance with Test MethodC 335.12.3.1 Type I: Block InsulationUse either Test MethodC 177, C 518,orC 1114 in conjunction with Practice C 1

37、045,using the following specimen preparation. Test Method C 518shall not be used at temperatures or thermal resistances otherthan those in the range of calibration. Test Method C 1114 shallnot be used at temperatures or thermal resistance ranges otherthan those with comparable/verifiable results to

38、Test MethodC 177. In case of dispute, Test Method C 177 is recognized asthe final authority. Specimen preparation is as follows:12.3.2 To achieve flatness and parallelism of the surface asrequired by the preceding test methods, the following methodis suggested: By sawing from the original block, pre

39、pare aspecimen with the required dimensions, its thickness being 2 or3 mm greater than the final thickness needed.12.3.3 Place the specimen on a flat metal plate slightlylarger than the specimen itself and put two machined metalbars on the metal plate near two opposite sides of the specimen.Insert a

40、 uniform sheet of paper having about 0.01-in. (14-mm)TABLE 1 Physical RequirementsATYPE I BLOCKPropertiesDensity, lb/ft3(kg/m3)Minimum 6.12 (98)Maximum 8.62 (138)Compressive strength, capped,Bmin, psi (kPa)(Capped material in accordance with TestMethods C 240)60 (415)Compressive resistance, uncapped

41、, min, psi (kPa)(Uncapped at 0.2-in. deformation)35 (242)Flexural strength, min, psi (kPa) 41 (283)Water absorption, max, volume % 0.5Water vapor permeability, max, perin. or grainsin.of thickness/hft2in. Hg (ngPa1s1m1)0.005 (0.007)Hot-surface performance warpage, in. (mm), max 0.125 (3)Cracking see

42、 12.8.1Behavior of materials in a vertical tube furnace passedSurface burning characteristicsCFlame spread index, max 5Smoke developed index, max 0Apparent Thermal ConductivityD,E: flat block, max(Btu-in./hft2F) (W/mK) mean temperature, F(C)400 (204) 0.58 (0.084)300 (149) 0.48 (0.069)200 (93) 0.40 (

43、0.058)100 (38) 0.33 (0.048)75 (24) 0.31 (0.045)50 (10) 0.30 (0.043)0 (18) 0.27 (0.039)50 (46) 0.24 (0.035)100 (73) 0.22 (0.032)150 (101) 0.20 (0.029)TYPE II PIPE AND TUBINGApparent thermal conductivityD,F,G,HPipe insulation, max, (Btuin./hft2F) (W/mK) atmean temperature F (C)400 (205) 0.69 (0.099)30

44、0 (149) 0.56 (0.081)200 (93) 0.46 (0.066)100 (38) 0.37 (0.053)Hot-surface performance warpage, in. (mm), max 0.125 (3)Cracking see 12.8.1APhysical property requirements shown are for the materials in the as-manufactured condition. They may or may not represent the values of theseproperties under cer

45、tain in-service conditions, depending on the type of installationand the ultimate temperature exposure.BFor information on higher density and compressive strength material, contactthe manufacturers.CFor Types II and III, smoke index and flame spread will remain constant withsome fabrication techniqu

46、es and will change with other fabrication techniques. Forapplications requiring a flame spread index of 25 and a smoke developed index of50, contact fabricator or manufacturer.DThermal transmission properties of insulation will vary with temperature,temperature gradient, thickness, and shape. Note t

47、he apparent thermal conduc-tivity values in the table are based on samples tested under conditions specified in12.3 These are comparative values for establishing specification compliance. Theymay not represent the installed performance for the insulation under use condi-tions differing substantially

48、 from the test conditions.EEvaluated at a small temperature difference in accordance with PracticeC 1058.FEvaluated at a large temperature difference in accordance with PracticeC 1058.GSingle layer or inner layer on a multilayer system piping insulation fabricatedin half sections may exhibit stress

49、cracks above 250F (122C). The thermalperformance in this range is characterized with cracks present.HAt this time, pipe insulation cannot be tested below ambient temperatures. See12.3, Note 2.TABLE 2 Manufacturers Dimensional TolerancesDimensions, in. (mm) Block (Type I) and Board (Type IV)Length 6116 (1.6)Width 6116 (1.6)Thickness 6116 (1.6)TABLE 3 Fabrication TolerancesDimensions, in. (mm)Board(Type III, IV)Pipe (Type II)Length 618 (3.2) In accordance withPractice C 1639Width 618 (3.2) In accordance withPractice C 16