1、Designation: C552 14Standard 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 parent
2、heses 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.1. Scope1.1 This specification covers the composition, sizes,dimensions, and
3、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 required for application in the temperature rangefrom 250 to
4、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 manufacturer and the purchaser.1.2 It is anticipated that single-
5、layer pipe insulation in halfsections or the inner layer of a multilayer system have thepotential to exhibit stress cracks above 250F (122C).1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provi
6、ded 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 and health practices and determine the applica-bilit
7、y of regulatory limitations prior to use.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 Flux Measure-ments and Thermal Transmission Properties
8、by Means ofthe Guarded-Hot-Plate ApparatusC203 Test Methods for Breaking Load and Flexural Proper-ties of Block-Type Thermal InsulationC240 Test Methods of Testing Cellular Glass InsulationBlockC302 Test Method for Density and Dimensions of Pre-formed Pipe-Covering-Type Thermal InsulationC303 Test M
9、ethod for Dimensions and Density of Pre-formed Block and BoardType Thermal InsulationC335 Test Method for Steady-State Heat Transfer Propertiesof Pipe InsulationC390 Practice for Sampling and Acceptance of ThermalInsulation LotsC411 Test Method for Hot-Surface Performance of High-Temperature Thermal
10、 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 and Outer Diameters of ThermalInsulation for Nominal Sizes
11、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 Stainless SteelC871 Test Methods for Chemical Analysis of T
12、hermal Insu-lation Materials for Leachable Chloride, Fluoride, Silicate,and Sodium IonsC1045 Practice for Calculating Thermal Transmission Prop-erties Under Steady-State ConditionsC1058 Practice for Selecting Temperatures for Evaluatingand Reporting Thermal Properties of Thermal InsulationC1114 Test
13、 Method for Steady-State Thermal TransmissionProperties by Means of the Thin-Heater ApparatusC1617 Practice for Quantitative Accelerated LaboratoryEvaluation of Extraction Solutions Containing IonsLeached from Thermal Insulation on Aqueous Corrosionof MetalsC1639 Specification for Fabrication Of Cel
14、lular Glass PipeAnd Tubing InsulationD226 Specification for Asphalt-Saturated Organic Felt Usedin Roofing and Waterproofing1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.20 onHomogeneous Inorganic Thermal
15、Insulations.Current edition approved Sept. 1, 2014. Published October 2014. Originallyapproved in 1965 to replace C381 58 and C343 56. Last previous editionapproved in 2013 as C552 13. DOI: 10.1520/C0552-14.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer
16、 Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D312 Specification for Asphalt Used in R
17、oofingE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE96/E96M Test Methods for Water Vapor Transmission ofMaterials2.2 ISO Document:ISO 3951 Sampling Procedure and Charts for Inspection byVariables for Percent Defective33. Terminology3.1 For definitions used in this specific
18、ation, see Terminol-ogy C168.3.2 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. Classification44.1 Cellular glass insulation covered by this specificatio
19、nshall be classified in the seven grades shown in Table 1. Gradesvary in compressive strength, 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 from
20、Type 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 not be commercially available.These would be considered special order items.5. Ordering Information5.1 Purchase orders for cellular glass insulation furnished tothis s
21、pecification shall include the following information:5.1.1 Type designation (see 4.1),5.1.2 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 dimens
22、ions in accordance with Section 9, inspectionrequirements in accordance with Section 13, 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 c
23、onsist of a glass compositionthat has been foamed or cellulated under molten conditions,annealed, 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
24、 covering shall be fabricatedfrom blocks in accordance with Practices C450, C585 andSpecification 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
25、 forspecific design recommendations for all material types.8. Qualification Requirements8.1 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 absorptio
26、n.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 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 insu
27、lation shall be fabricatedfrom material having met the qualification requirements ofGrade 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
28、 BlockBlocks shall be nominal rectangularsections. The dimensions shall be as agreed upon by thepurchaser and the supplier. Cellular glass thermal insulationblock is available in lengths up to 36 in. (914 mm), widths upto 18 in. (457mm), and thicknesses from 1.5 in. (38 mm) to 8in. (203 mm).9.2 Type
29、 II, Pipe and Tubing InsulationSee SpecificationC1639.9.3 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. Cellular glassthermal insulat
30、ion 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) to 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 Tab
31、le 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.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.
32、4Type and grade designations are in accordance with Form and Style for ASTMStandards, Part B, Section B8, March 2002.C552 142TABLE 1 Physical RequirementsA,BTYPE I BLOCKProperties Grade 6 Grade 8 Grade 10 Grade 12 Grade 14 Grade 16 Grade 24Compressive strength, capped, min, psi (kPa)(Capped material
33、 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. deformation)35 (242) N/AC
34、N/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) 0.005 (0.007)0.005(0.007)0.0
35、05 (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 passed passed passed passe
36、d 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 (C)400 (204) 0.58 (0.084
37、) 0.58 (0.084) 0.58 (0.084) 0.60 (0.086) 0.61 (0.087) 0.61 (0.088) 0.65 (0.094)300 (149) 0.48 (0.070) 0.50 (0.072) 0.51 (0.074) 0.51 (0.074) 0.52 (0.075) 0.52 (0.076) 0.57 (0.082)200 (93) 0.40 (0.058) 0.41 (0.058) 0.42 (0.061) 0.43 (0.062) 0.44 (0.063) 0.45 (0.064) 0.49 (0.071)100(38) 0.33 (0.047) 0
38、.34 (0.049) 0.35 (0.050) 0.36 (0.052) 0.37 (0.053) 0.38 (0.054) 0.42 (0.061)75 (24) 0.31 (0.045) 0.32 (0.046) 0.33 (0.048) 0.35 (0.050) 0.36 (0.051) 0.36 (0.052) 0.40 (0.058)50 (10) 0.29 (0.043) 0.31 (0.044) 0.32 (0.046) 0.33 (0.048) 0.34 (0.049) 0.35 (0.050) 0.39 (0.056)0 (18) 0.27 (0.038) 0.28 (0.
39、040) 0.29 (0.042) 0.30 (0.043) 0.31 (0.045) 0.32 (0.046) 0.36 (0.051)50 (46) 0.24 (0.034) 0.25 (0.036) 0.26 (0.037) 0.28 (0.040) 0.28 (0.040) 0.29 (0.042) 0.33 (0.050)100 (73) 0.21 (0.031) 0.23 (0.033) 0.24 (0.035) 0.25 (0.037) 0.26 (0.037) 0.27 (0.039) 0.31 (0.045)150 (101) 0.19 (0.027) 0.20 (0.029
40、) 0.22 (0.032) 0.23 (0.034) 0.24 (0.035) 0.25 (0.036) 0.29 (0.042)200 (129) 0.17 (0.025) 0.18 (0.026) 0.20 (0.029) 0.21 (0.031) 0.22 (0.032) 0.23 (0.033) 0.27 (0.041)250 (157) 0.15 (0.022) 0.17 (0.025) 0.18 (0.026) 0.19 (0.029) 0.20 (0.029) 0.21 (0.031) 0.25 (0.036)300 (184) 0.14 (0.020) 0.15 (0.022
41、) 0.16 (0.023) 0.17 (0.025) 0.18 (0.026) 0.19 (0.027) 0.23 (0.034)TYPE II PIPE 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
42、 (10) 0.32 (0.046)0 (-18) 0.29 (0.042)-50 (-46) 0.26 (0.037)-100 (-73) 0.23 (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 necessari
43、ly represent the values of these properties undercertain in-service conditions, 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 sp
44、read index will remain constant with some fabrication techniques and will change 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 ins
45、ulation will vary with temperature, temperature gradient, thickness, and shape. 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 necessarilyrepr
46、esent the installed performance for the insulation under use conditions differing substantially from the test conditions.GEvaluated at a small temperature difference in accordance with Practice C1058.HEvaluated at a large temperature difference in accordance with Practice C1058.ISingle layer or inne
47、r layer on a multilayer system piping insulation fabricated in half sections has the potential to exhibit stress cracks above 250F (122C). The thermalperformance in this range is characterized with cracks present.C552 1439.5.4 For Types I, II, and IV, special dimensional tolerancesshall be agreed up
48、on between the purchaser and the supplier asstated in the purchase contract.10. Workmanship, Finish, and Appearance10.1 Since some requirements for this material are noteasily specified by numerical value, the insulation shall haveno visible defects that will adversely affect its service qualities.1
49、1. Sampling11.1 The insulation shall be sampled for the purpose oftesting in accordance with Practice C390 or ISO 39515. Anyspecific provisions for sampling shall be agreed upon betweenthe purchaser and the supplier.12. 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), or board. Al
