1、Designation: C552 171Standard Specification forCellular Glass Thermal Insulation1This standard is issued under the fixed designation C552; 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 paren
2、theses 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 U.S. Department of Defense.1NOTEEditorially corrected 1.2 and 12.8 in April 2018.1. Scope1.1 This speci
3、fication covers the composition, sizes,dimensions, and physical properties of cellular glass thermalinsulation intended for use on surfaces operating at tempera-tures between 450 and 800F (268 and 427C). It is possiblethat special fabrication or techniques for pipe insulation, orboth, will be requir
4、ed for application in the temperature rangefrom 250 to 800F (121 to 427C). Contact the manufacturerfor recommendations regarding fabrication and applicationprocedures for use in this temperature range. For specificapplications, the actual temperature limits shall be agreed uponbetween the manufactur
5、er and the purchaser.1.2 Cellular glass insulation has the potential to exhibitstress cracks if the rate of temperature change exceeds 200F(112C) per hour.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units
6、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 safety, health, and environmental practices a
7、nd deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom
8、-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C165 Test Method for Measuring Compressive Properties ofThermal InsulationsC168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Fl
9、ux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC203 Test Methods for Breaking Load and Flexural Proper-ties of Block-Type Thermal InsulationC240 Test Methods for Testing Cellular Glass InsulationBlockC302 Test Method for Density and Dimensions of Pre-f
10、ormed Pipe-Covering-Type Thermal InsulationC303 Test Method for Dimensions and Density of Pre-formed Block and BoardType Thermal InsulationC335/C335M Test Method for Steady-State Heat TransferProperties of Pipe InsulationC390 Practice for Sampling and Acceptance of ThermalInsulation LotsC411 Test Me
11、thod for Hot-Surface Performance of High-Temperature Thermal InsulationC450 Practice for Fabrication of Thermal Insulating FittingCovers for NPS Piping, and Vessel LaggingC518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC585 Practice for Inner
12、 and Outer Diameters of ThermalInsulation for Nominal Sizes of Pipe and TubingC692 Test Method for Evaluating the Influence of ThermalInsulations on External Stress Corrosion Cracking Ten-dency of Austenitic Stainless SteelC795 Specification for Thermal Insulation for Use in Con-tact with Austenitic
13、 Stainless Steel1This 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 Oct. 1, 2017. Published October 2017. Originallyapproved in 1965 to re
14、place C381 58 and C343 56. Last previous editionapproved in 2016 as C552 16a. DOI: 10.1520/C0552-17E01.2For 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
15、 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 standardization established in the Decision
16、 on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1C871 Test Methods for Chemical Analysis of Thermal Insu-lation Materials for Leachable Chloride, Fluoride, Silicate,and Sodium
17、IonsC1045 Practice for Calculating Thermal Transmission Prop-erties Under Steady-State ConditionsC1058/C1058M Practice for Selecting Temperatures forEvaluating and Reporting Thermal Properties of ThermalInsulationC1114 Test Method for Steady-State Thermal TransmissionProperties by Means of the Thin-
18、Heater ApparatusC1617 Practice for Quantitative Accelerated LaboratoryEvaluation of Extraction Solutions Containing IonsLeached from Thermal Insulation on Aqueous Corrosionof MetalsC1639 Specification for Fabrication Of Cellular Glass PipeAnd Tubing InsulationD226/D226M Specification for Asphalt-Sat
19、urated OrganicFelt Used in Roofing and WaterproofingD312/D312M Specification for Asphalt Used in RoofingE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE96/E96M Test Methods for Water Vapor Transmission ofMaterials2.2 ISO Documents:3ISO 3951 Sampling Procedure and Charts for
20、Inspection byVariables for Percent DefectiveISO 8497 Determination of steady-state thermal transmis-sion properties of thermal insulation for circular pipes3. Terminology3.1 For definitions used in this specification, see Terminol-ogy C168.3.2 Definitions of Terms Specific to This Standard:3.2.1 boa
21、rdfabricated sections of cellular glass adheredand together covered with a facing such as a laminated kraftpaper adhered to both faces.4. Classification44.1 Cellular glass insulation covered by this specificationshall be classified in the seven grades shown in Table 1. Gradesvary in compressive stre
22、ngth, density, thermal conductivity,and flexural strength. Cellular glass insulation is furnished inthe following types: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
23、from Type I,NOTE 1Types not listed here may not 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
24、.2 Dimensions according to type (see Section 9), and5.1.3 Jacketing when required.5.2 Any special requirements, such as, type, fabricationcombinations not listed in accordance with Section 4, nonstan-dard dimensions in accordance with Section 9, inspectionrequirements in accordance with Section 13,
25、or certificationrequirements in accordance with 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,a
26、nnealed, and set to form a rigid noncombustible 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 C450, C585 andSpeci
27、fication C1639.6.3 Board, tapered or flat, 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
28、.1 The following requirements are generally 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
29、.8.1.7 Surface burning characteristics.8.2 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 ofGrade
30、 6 Type I block.8.3 Type III and Type IV material shall be fabricated frommaterial having met the qualification requirements of Grade 6Type I block.9. Dimensions, Mass, and Permissible Variations9.1 Type I, Flat BlockBlocks shall be nominal rectangularsections. The dimensions shall be as agreed upon
31、 by thepurchaser and the supplier. Cellular glass thermal insulationblock is available in lengths up to 36 in. (914 mm), widths upto 18 in. (457 mm), and thicknesses from 1.5 in. (38 mm) to 8in. (203 mm).9.2 Type II, Pipe and Tubing InsulationSee SpecificationC1639.3Available from American National
32、Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.4Type and grade designations are in accordance with Form and Style for ASTMStandards, Part B, Section B8, March 2002.C552 17129.3 Type III, Special ShapesDimensions of special shapesshall be as agreed upon b
33、etween the supplier and the purchaser.9.4 Type IV, BoardDimensions of board shall be agreedupon between the purchaser and the supplier. Cellular glassTABLE 1 Physical RequirementsA,BTYPE I BLOCKProperties Grade 6 Grade 8 Grade 10 Grade 12 Grade 14 Grade 16 Grade 24Compressive strength, capped, min,
34、psi (kPa)(Capped material in accordance with TestMethods C240)60 (414) 80 (552) 100 (689) 120 (827) 140 (965) 160 (1103) 240 (1655)Density, lb/ft3(kg/m3) 6.12 (98) 6.3 (102) 6.9 (110) 7.4 (119) 8.0 (128) 8.5 (136) 10.6 (170)MinimumCompressive resistance, uncapped, min, psi(kPa) (Uncapped at 0.2-in.
35、deformation)35 (242) N/ACN/ACN/ACN/ACN/ACN/ACFlexural strength, min, psi (kPa) 41 (283) 45 (310) 51(351) 56 (386) 63 (434) 69 (476) 91 (627)Water absorption, max, volume % 0.5 0.5 0.5 0.5 0.5 0.5 0.5Water vapor permeability, max, perin. orgrainsin. of thickness/hft2in.Hg (ngPa1s1m1)0.005 (0.007) 0.0
36、05 (0.007)0.005(0.007)0.005 (0.007)0.005(0.007)0.005 (0.007) 0.005 (0.007)Hot-surface performance warpage, in. (mm),max 0.125 (3) 0.125 (3) 0.125 (3) 0.125 (3) 0.125 (3) 0.125 (3) 0.125 (3)Cracking per 12.8.1 pass pass pass pass pass pass passBehavior of materials in a vertical tube furnace passed p
37、assed passed passed passed passed passedSurface burning characteristicsDFlame spread index, max 5 5 5 5 5 5 5Smoke developed index, max 0 0 0 0 0 0 0Mass Loss Corrosion Rate # DIE# DI # DI # DI # DI # DI # DIApparent Thermal ConductivityF,G: flat block,maxBtu-in./hft2F (W/mK) at mean temperatureof:F
38、 (C)400 (204) 0.58 (0.084) 0.58 (0.084) 0.58 (0.084) 0.60 (0.086) 0.61 (0.088) 0.61 (0.088) 0.66 (0.095)300 (149) 0.48 (0.069) 0.50 (0.072) 0.51 (0.074) 0.51 (0.074) 0.52 (0.075) 0.52 (0.075) 0.58 (0.084)200 (93) 0.40 (0.058) 0.41 (0.059) 0.42 (0.061) 0.43 (0.062) 0.44 (0.063) 0.45 (0.065) 0.50 (0.0
39、72)100(38) 0.33 (0.048) 0.34 (0.049) 0.35 (0.050) 0.36 (0.052) 0.37 (0.053) 0.38 (0.055) 0.43 (0.062)75 (24) 0.31 (0.045) 0.32 (0.046) 0.33 (0.048) 0.35 (0.050) 0.36 (0.052) 0.36 (0.052) 0.42 (0.060)50 (10) 0.30 (0.043) 0.31 (0.045) 0.32 (0.046) 0.33 (0.048) 0.34 (0.049) 0.35 (0.050) 0.40 (0.058)0 (
40、18) 0.27 (0.039) 0.28 (0.040) 0.29 (0.042) 0.30 (0.043) 0.31 (0.045) 0.32 (0.046) 0.37 (0.053)50 (46) 0.24 (0.035) 0.25 (0.036) 0.26 (0.037) 0.28 (0.040) 0.28 (0.040) 0.29 (0.042) 0.35 (0.050)100 (73) 0.21 (0.030) 0.23 (0.033) 0.24 (0.035) 0.25 (0.036) 0.26 (0.037) 0.27 (0.039) 0.32 (0.046)150 (101)
41、 0.19 (0.027) 0.20 (0.029) 0.22 (0.032) 0.23 (0.033) 0.24 (0.035) 0.25 (0.036) 0.30 (0.043)200 (129) 0.17 (0.025) 0.18 (0.026) 0.20 (0.029) 0.21 (0.030) 0.22 (0.032) 0.23 (0.033) 0.28 (0.040)250 (157) 0.16 (0.023) 0.17 (0.025) 0.18 (0.026) 0.19 (0.027) 0.20 (0.029) 0.21 (0.030) 0.26 (0.037)TYPE II P
42、IPE AND TUBINGApparent thermal conductivityF,H,IPipe insulation, max, Btuin./hft2F (W/mK)at mean temperature of:F (C)400 (204) 0.63 (0.091)300 (149) 0.52 (0.075)200 (93) 0.43 (0.062)100 (38) 0.35 (0.050)75 (24) 0.34 (0.049)50 (10) 0.32 (0.046)0 (-18) 0.29 (0.042)-50 (-46) 0.26 (0.037)-100 (-73) 0.23
43、 (0.033)-150 (-101) 0.21 (0.030)Hot-surface performance warpage, in. (mm),max0.125 (3)Cracking per 12.8.1 passAPhysical property requirements shown are for the materials in the as-manufactured condition. They do not necessarily represent the values of these properties undercertain in-service conditi
44、ons, depending on the type of installation and the ultimate temperature exposure.BTypes II, III, and IV are fabricated from Type 1, Grade 6 block.CN/A = Not Applicable.DFor Types II and III, smoke developed index and flame spread index will remain constant with some fabrication techniques and will c
45、hange with other fabricationtechniques. For applications requiring a flame spread index of 25 and a smoke developed index of 50, contact fabricator or manufacturer.EDI = deionized water.FThermal transmission properties of insulation will vary with temperature, temperature gradient, thickness, and sh
46、ape. Note the apparent thermal conductivity values inthe table are based on samples tested under conditions specified in 12.3 These are comparative values for establishing specification compliance. They do not necessarilyrepresent the installed performance for the insulation under use conditions dif
47、fering substantially from the test conditions.GEvaluated at a small temperature difference in accordance with Practice C1058/C1058M.HEvaluated at a large temperature difference in accordance with Practice C1058/C1058M.ISingle layer or inner layer on a multilayer system piping insulation fabricated i
48、n half sections has the potential to exhibit stress cracks above 250F (122C). The thermalperformance in this range is characterized with cracks present.C552 1713thermal insulation board is available in lengths up to 48 in.(1219 mm), widths up to 24 in. (610 mm), and thicknessesfrom 1.5 in. (38 mm) t
49、o 8 in. (203 mm).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, dimensional 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. W
