ASTM C552-2003 Standard Specification for Cellular Glass Thermal Insulation《多孔玻璃隔热材料标准规范》.pdf

1、Designation: C 552 03Standard 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 for Testing Cellular Glass InsulatingBlockC 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 Broad-Type Thermal Ins

9、ulationC 335 Test Method for Steady-State Heat Transfer Proper-ties of Horizontal Pipe InsulationC 390 Practice for Sampling and Acceptance of PreformedThermal Insulation LotsC411 Test Method for Hot-Surface Performance of High-Temperature Thermal InsulationC 450 Practice for Prefabrication and Fiel

10、d Fabrication ofThermal Insulating Fitting Covers for NPS Piping andVessel 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(NP

11、S System)C 692 Test Method for Evaluating the Influence of ThermalInsulations on the External Stress Corrosion CrackingTendency of Austenitic SteelC 795 Specification for Thermal Insulation for Use in Con-tact with Austenitic Stainless SteelC 871 Test Methods for Chemical Analysis of ThermalInsulati

12、on Materials for Leachable Chloride, Fluoride,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 Ste

13、ady-State Thermal TransmissionProperties by Means of the Thin Heater Apparatus1This 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 Nov. 1,

14、2003. Published December 2003. Originallyapproved in 1965 to replace C 381 58 and C 343 56. Last previous editionapproved in 2000 as C 552 00e1.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards v

15、olume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.D 226 Specification for Asphalt-Saturated Organic FeltUsed in Roofing and WaterproofingD 312 Specifica

16、tion for Asphalt Used in RoofingE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE96 Test Methods for Water Vapor Transmission of Mate-rials2.2 ISO Document:ISO 3951 Sampling Procedure and Charts for Inspection byVariables for Percent Defective33. Terminology3.1 For definition

17、s 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 adheredtogether covered with a facing such as a laminated kraft paperadhered to both faces.4. Classification44.1 Cellular glass insulation covered

18、by this specificationshall be classified in the two grades shown in Table 1. Gradesvary in density, thermal conductivity, compressive strength,and flexural strength. Cellular glass insulation may be fur-nished in the following types:4.1.1 Type IFlat block, generally manufactured in Grades1 and 2.4.1

19、.2 Type IIPipe and tubing insulation, generally fabri-cated in Grades 1 and 2.4.1.3 Type IIISpecial shapes, generally fabricated inGrades 1 and 2.4.1.4 Type IVBoard, generally fabricated in Grade 2.NOTE 1Type and grade combinations not listed here may not becommercially available. These would be con

20、sidered 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 and grade designation (see 4.1),5.1.2 Dimensions according to type and grade (see Section8), and5.1.3 Jacketing when

21、required.5.2 Any special requirements, such as, type and gradefabrication combinations not listed in accordance with Section4, nonstandard dimensions in accordance with Section 8,inspection requirements in accordance with Section 13,orcertification requirements in accordance with Section 16 shallbe

22、agreed upon between the purchaser and the supplier andstated in the purchase 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 noncombustible material withhermet

23、ically sealed cells. The material shall be trimmed intoblocks of standard dimensions that may be rectangular ortapered.6.2 Special shapes and pipe covering shall be fabricatedfrom blocks in accordance with Practices C 450 and C 585 andAnnex A1 of this specification.6.3 Board, tapered or flat, shall

24、be fabricated from blocks.7. Physical Properties7.1 The cellular glass insulation shall conform to the physi-cal requirements in Table 1. The manufacturer should becontacted for specific design recommendations for all materialtypes.8. Qualification Requirements8.1 The following requirements are gene

25、rally employed forthe purpose of initial material or product qualification for TypeI for specific grades, that is, Grade 1 and 2, 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 perfo

26、rmance.8.1.7 Surface burning characteristics.8.2 The following requirements are generally employed forqualification of Type II, Grades 1 and 2, pipe and tubinginsulation:8.2.1 Thermal Conductivity.8.2.2 Type II, pipe and tubing insulation shall be fabricatedfrom material having met the qualification

27、 requirements ofType I.8.2.3 Type III and Type IV material shall 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

28、 in. (610mm) in length, and 1.5 to 6 in. (38 to 152 mm) in thickness.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 suppl

29、ier.)9.2 Type II, Pipe and Tubing InsulationSee Annex A1.9.3 Type III, Special ShapesDimensions of special shapesshall be as agreed upon between the supplier and the purchaser.9.4 Type IV, BoardDimensions and grade of board shallbe agreed upon between the purchaser and the supplier. Boardsare availa

30、ble typically as 24 in. (610 mm) wide by 48 in. (1219mm) long by 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 dimensio

31、nal tolerances are given inTable 3.9.5.3 For Type III, dimensional tolerances shall be agreedupon between the purchaser and 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

32、 and Style for ASTMStandards, Part B, 10th ed., Section B8., January 1996.C5520329.5.4 For Types I, II, and IV, special dimensional tolerancesmay be agreed upon between the purchaser and the supplier asstated in the purchase contract.10. Workmanship, Finish and Appearance10.1 Since some requirements

33、 for this 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 sampl

34、ing shall be agreed upon between the purchaserand the supplier.12. Test Methods12.1 All cellular glass is produced initially in block formand may be fabricated into pipe, curved or segmental insula-tion, precision V-grooved (material cut to fit around theexterior surface of piping or equipment with

35、no gaps), or board.All initial qualification testing shall be made on block speci-mens. All tests shall be conducted on specimens with nosurface moisture. The properties referenced in this specifica-tion shall be determined in accordance with the following testmethods:12.2 Density:12.2.1 Type IBlock

36、 insulation: 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

37、2At this time, 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 P

38、ractice C 1045,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

39、results to Test MethodTABLE 1 Physical RequirementsAGrades 1 and 2TYPE I BLOCKProperties Grade 1 Grade 2Density, lb/ft3(kg/m3)Minimum 6.12 (98) 6.80 (109)Maximum 8.62 (138) 9.74 (156)Compressive strength, capped,Bmin, psi (kPa)(Capped material in accordance with TestMethods C 240)60 (415) 60 (415)Co

40、mpressive resistance, uncapped, min, psi (kPa)(Uncapped at 0.2-in. deformation)35 (242) 60 (415)Flexural strength, min, psi (kPa) 41 (283) 60 (414)Water absorption, max, volume % 0.5 0.5Water vapor permeability, max, perin. or grainsin.of thickness/hft2in. Hg (ngPa1s1m1)0.005 (0.007) 0.005 (0.007)Ho

41、t-surface performance warpage, in. (mm), max 0.125 (3) 0.125 (3)Cracking see 12.8.1 see 12.8.1Behavior of materials in a vertical tube furnace passed passedSurface burning characteristicsCFlame spread index, max 5 5Smoke developed index, max 0 0Apparent Thermal ConductivityD,E: flat block, max(Btu-i

42、n./hft2F) (W/mK) mean temperature, F(C)400 (204) 0.58 (0.084) 0.63 (0.090)300 (149) 0.48 (0.069) 0.52 (0.075)200 (93) 0.40 (0.058) 0.44 (0.063)100 (38) 0.33 (0.048) 0.37 (0.053)75 (24) 0.31 (0.045) 0.35 (0.051)50 (10) 0.30 (0.043) 0.34 (0.049)0 (18) 0.27 (0.039) 0.31 (0.045)50 (46) 0.24 (0.035) 0.29

43、 (0.042)100 (73) 0.22 (0.032) 0.27 (0.039)150 (101) 0.20 (0.029) 0.26 (0.037)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) 0.69 (0.099)300 (149) 0.56 (0.081) 0.58 (0.083)200 (93) 0.46 (0.066) 0.48

44、 (0.069)100 (38) 0.37 (0.053) 0.41 (0.059)Hot-surface performance warpage, in. (mm), max 0.125 (3) 0.125 (3)Cracking see 12.8.1 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 ce

45、rtain 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 may vary with differentfabrication methods. For a

46、pplications requiring a flame spread index of 25 and asmoke developed index of 50, contact fabricator or manufacturer.DThermal transmission properties of insulation may vary with temperature,temperature gradient, thickness, and shape. Note the apparent thermal conduc-tivity values in the table are b

47、ased on samples tested under conditions specified in12.2.2 These are comparative values for establishing specification compliance.They may not represent the installed performance for the insulation under useconditions differing substantially from the test conditions.EEvaluated at a small temperature

48、 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 cracks above 250F (122C). The thermalperformance in this ra

49、nge 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) 618 (3.2)Width 618 (3.2) not applicableThickness 618 (3.2) not applicableInner diameter . . . in accordance with Practice C 585Outer dia