1、Designation: C552 16aC552 17Standard 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 i
2、n parentheses 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, dimensi
3、ons, and physical properties of cellular glass thermal insulationintended for use on surfaces operating at temperatures between 450 and 800F (268 and 427C). It is possible that specialfabrication or techniques for pipe insulation, or both, will be required for application in the temperature range fr
4、om 250 to 800F(121 to 427C). Contact the manufacturer for recommendations regarding fabrication and application procedures for use in thistemperature range. For specific applications, the actual temperature limits shall be agreed upon between the manufacturer and thepurchaser.1.2 It is anticipated t
5、hat single-layer pipe insulation in half sections or the inner layer of a multilayer system have the Cellularglass insulation has the potential to exhibit stress cracks above 250F (122C).if the rate of temperature change exceeds 200F(94C) per hour.1.3 The values stated in inch-pound units are to be
6、regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof t
7、he user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationes
8、tablished 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 Standards:2C165 Test Method for Measuring Compressive Properties of The
9、rmal InsulationsC168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of theGuarded-Hot-Plate ApparatusC203 Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal InsulationC240 Test
10、Methods of Testing Cellular Glass Insulation BlockC302 Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal InsulationC303 Test Method for Dimensions and Density of Preformed Block and BoardType Thermal InsulationC335/C335M Test Method for Steady-State Heat Transfer Propert
11、ies of Pipe InsulationC390 Practice for Sampling and Acceptance of Thermal Insulation LotsC411 Test Method for Hot-Surface Performance of High-Temperature Thermal InsulationC450 Practice for Fabrication of Thermal Insulating Fitting Covers for NPS Piping, and Vessel LaggingC518 Test Method for Stead
12、y-State Thermal Transmission Properties by Means of the Heat Flow Meter ApparatusC585 Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and Tubing1 This specification is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsi
13、bility of Subcommittee C16.20 on HomogeneousInorganic Thermal Insulations.Current edition approved Sept. 1, 2016Oct. 1, 2017. Published September 2016October 2017. Originally approved in 1965 to replace C381 58 and C343 56. Lastprevious edition approved in 2016 as C552 16.C552 16a. DOI: 10.1520/C055
14、2-16A.10.1520/C0552-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. ForAnnual Book ofASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard an
15、d 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 consult prior editions as appropriate. In all cases only
16、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 States1C692 Test Method for Evaluating the Influence of Thermal Insulations on External Stress
17、Corrosion Cracking Tendency ofAustenitic Stainless SteelC795 Specification for Thermal Insulation for Use in Contact with Austenitic Stainless SteelC871 Test Methods for Chemical Analysis of Thermal Insulation Materials for Leachable Chloride, Fluoride, Silicate, andSodium IonsC1045 Practice for Cal
18、culating Thermal Transmission Properties Under Steady-State ConditionsC1058/C1058M Practice for Selecting Temperatures for Evaluating and Reporting Thermal Properties of Thermal InsulationC1114 Test Method for Steady-State Thermal Transmission Properties by Means of the Thin-Heater ApparatusC1617 Pr
19、actice for Quantitative Accelerated Laboratory Evaluation of Extraction Solutions Containing Ions Leached fromThermal Insulation on Aqueous Corrosion of MetalsC1639 Specification for Fabrication Of Cellular Glass Pipe And Tubing InsulationD226/D226M Specification for Asphalt-Saturated Organic Felt U
20、sed in Roofing and WaterproofingD312/D312M Specification for Asphalt Used in RoofingE84 Test Method for Surface Burning Characteristics of Building MaterialsE96/E96M Test Methods for Water Vapor Transmission of Materials2.2 ISO Documents:3ISO 3951 Sampling Procedure and Charts for Inspection by Vari
21、ables for Percent DefectiveISO 8497 Determination of steady-state thermal transmission properties of thermal insulation for circular pipes3. Terminology3.1 For definitions used in this specification, see Terminology C168.3.2 Definitions of Terms Specific to This Standard:3.2.1 boardfabricated sectio
22、ns of cellular glass adhered and together covered with a facing such as a laminated kraft paperadhered to both faces.4. Classification44.1 Cellular glass insulation covered by this specification shall be classified in the seven grades shown in Table 1. Grades varyin compressive strength, density, th
23、ermal conductivity, and flexural strength. Cellular glass insulation is furnished in the followingtypes:4.1.1 Type IFlat block manufactured,4.1.2 Type IIPipe and tubing insulation fabricated from Type I,4.1.3 Type IIISpecial shapes fabricated from Type I,4.1.4 Type IVBoard fabricated from Type I,NOT
24、E 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 to this specification shall include the following information:5.1.1 Type designation (see 4.1),5.1.2 Dimensions
25、 according to type (see Section 9), and5.1.3 Jacketing when required.5.2 Any special requirements, such as, type, fabrication combinations not listed in accordance with Section 4, nonstandarddimensions in accordance with Section 9, inspection requirements in accordance with Section 13, or certificat
26、ion requirements inaccordance with Section 16 shall be agreed upon between the purchaser and the supplier and stated in the purchase contract.6. Materials and Manufacture6.1 The block material shall consist of a glass composition that has been foamed or cellulated under molten conditions,annealed, a
27、nd set to form a rigid noncombustible material with hermetically sealed cells. The material shall be trimmed into blocksof standard dimensions that are rectangular or tapered.6.2 Special shapes and pipe covering shall be fabricated from blocks in accordance with Practices C450, C585 and Specificatio
28、nC1639.6.3 Board, tapered or flat, shall be fabricated from blocks.3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.4 Type and grade designations are in accordance with Form and Style for ASTM Standards, Part B, Section
29、B8, March 2002.C552 172TABLE 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 in accordance with TestMethods C240)60 (414) 80 (552) 100 (689) 120 (827) 140 (965) 160 (1103) 240 (1
30、655)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 N/AC N/AC N/AC N/AC N/ACFlexural strength, min, psi (kPa) 41 (283) 45 (310) 51(351) 56 (386) 63 (43
31、4) 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 (ngPa1s1 m1)0.005 (0.007) 0.005 (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)
32、,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 passed passed passedSurface burning characteristicsDFlame spread index, max 5 5 5 5 5 5 5Smoke
33、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) 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)
34、 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 (0.072)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
35、 (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 (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
36、) 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) 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)
37、 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 PIPE AND TUBINGApparent thermal conductivityF,H,IPipe insulation, max, Btuin./hft2F (W/mK)at mean temperature of:F
38、 (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 (0.033)-150 (-101) 0.21 (0.030)Hot-surface performance warpage, in. (mm),max0.125 (3)Cracking per 12.8.1 passA P
39、hysical 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 conditions, depending on the type of installation and the ultimate temperature exposure.B Types II, III, and IV are fab
40、ricated from Type 1, Grade 6 block.C N/A = Not Applicable.D For Types II and III, smoke developed index and flame spread 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 dev
41、eloped index of 50, contact fabricator or manufacturer.E DI = deionized water.F Thermal transmission properties of insulation will vary with temperature, temperature gradient, thickness, and shape. Note the apparent thermal conductivity values inthe table are based on samples tested under conditions
42、 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 differing substantially from the test conditions.G Evaluated at a small temperature difference in accordance w
43、ith Practice C1058/C1058M.H Evaluated at a large temperature difference in accordance with Practice C1058/C1058M.I Single layer or inner layer on a multilayer system piping insulation fabricated in half sections has the potential to exhibit stress cracks above 250F (122C). The thermalperformance in
44、this range is characterized with cracks present.C552 1737. Physical Properties7.1 The cellular glass insulation shall conform to the physical requirements in Table 1. Contact the manufacturer for specificdesign recommendations for all material types.8. Qualification Requirements8.1 The following req
45、uirements are generally employed for the purpose of initial material or product qualification for Type I,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 burn
46、ing characteristics.8.2 The following requirements are generally employed for qualification of Type II, pipe and tubing insulation:8.2.1 Thermal Conductivity.8.2.2 Type II, pipe and tubing insulation shall be fabricated from material having met the qualification requirements of Grade6 Type I block.8
47、.3 Type III and Type IV material shall be fabricated from material having met the qualification requirements of Grade 6 TypeI block.9. Dimensions, Mass, and Permissible Variations9.1 Type I, Flat BlockBlocks shall be nominal rectangular sections. The dimensions shall be as agreed upon by the purchas
48、erand the supplier. Cellular glass thermal insulation block is available in lengths up to 36 in. (914 mm), widths up to 18 in. (457mm),(457 mm), and thicknesses from 1.5 in. (38 mm) to 8 in. (203 mm).9.2 Type II, Pipe and Tubing InsulationSee Specification C1639.9.3 Type III, Special ShapesDimension
49、s of special shapes shall be as agreed upon between the supplier and the purchaser.9.4 Type IV, BoardDimensions of board shall be agreed upon between the purchaser and the supplier. Cellular glass thermalinsulation board is available in lengths up to 48 in. (1219 mm), widths up to 24 in. (610 mm), and thicknesses from 1.5 in. (38mm) 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 with those listedin Table 2.9.5.2
