1、Designation: C 592 04Standard Specification forMineral Fiber Blanket Insulation and Blanket-Type PipeInsulation (Metal-Mesh Covered) (Industrial Type)1This standard is issued under the fixed designation C 592; the number immediately following the designation indicates the year oforiginal adoption or
2、, in the case of revision, the year of last revision. A number in parentheses 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. This spe
3、cification replaces HH-I-558B in part.1. Scope1.1 This specification covers the composition, dimensions,and physical properties of metal-mesh covered mineral fiber(rock, slag, or glass) blanket and blanket-type pipe insulation(typically on 24 in. (610 mm) diameters or larger) for use oncooled surfac
4、es at temperatures operating below ambient to0F (18C) and on heated surfaces operating at temperaturesup to 1200F (649C). Specific applications outside the actualuse temperatures shall be agreed upon between the manufac-turer and purchaser.1.2 For satisfactory performance, properly installed protec-
5、tive vapor retarders or barriers shall be used on below ambienttemperature applications to reduce movement of moisturethrough or around the insulation to the colder surface. Failureto use a vapor barrier when insulating below ambient systemscreates conditions that, unless otherwise treated will lead
6、 toinsulation and system damage. Refer to Practice C 921 to aidmaterial selection. Although vapor retarder properties are notpart of this specification, properties required in SpecificationC 1136 are pertinent to applications or performance.1.3 The orientation of the fibers within the blanket isprim
7、arily parallel to the heated surface. This specification doesnot cover fabricated pipe and tank wrap insulation where theinsulation has been cut and fabricated to provide fiber orien-tation that is perpendicular to the heated surface.1.4 This standard does not purport to provide the perfor-mance req
8、uirements of hourly-rated fire systems. Consult themanufacturer for the appropriate system.1.5 See Supplementary Requirements for modifications toparagraphs in this standard when using Specification C 592 inlieu of the United States Department of Defense, Departmentof Navy, Naval Sea Systems Command
9、, in Washington, DC,Military Specifications No.(s) MIL-I-2818B and MIL-I-2818C.1.6 The values stated in inch-pound units shall be regardedas the standard. The System International (SI) equivalents ofinch-pound units are given in parentheses for information onlyand are approximate.1.7 This standard d
10、oes 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-bility of regulatory requirements prior to use.2. Referenced Documents2.1 ASTM S
11、tandards:2C 167 Test Methods for Thickness and Density of Blanketor Batt Thermal InsulationsC 168 Terminology Relating to Thermal Insulating Materi-alsC 177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC 356 Test M
12、ethod for Linear Shrinkage of PreformedHigh-Temperature Thermal Insulation Subjected to Soak-ing HeatC 390 Criteria for Sampling and Acceptance of PreformedThermal Insulation LotsC 411 Test Method for Hot-Surface Performance of High-Temperature Thermal InsulationC 447 Practice for Estimating the Max
13、imum Use Tempera-ture of Thermal InsulationsC 518 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Heat Flow Meter ApparatusC 665 Specification for Mineral-Fiber Blanket Thermal In-sulation for Light Frame Construction and ManufacturedHousingC 6
14、80 Practice for Determination of Heat Gain or Loss andthe Surface Temperatures of Insulated Pipe and Equipment1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.23 onBlanket and Loose Fill Insulation.Current e
15、dition approved May 1, 2004. Published June 2004. Originallyapproved in 1966. Last previous edition approved in 2000 as C 592 00.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume informati
16、on, 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.by the Use of a Computer ProgramC 921 Practice for Determining the Properties of JacketingMaterials for Thermal Insul
17、ationC 1045 Practice for Calculating Thermal TransmissionProperties Under Steady-State ConditionsC 1058 Practice for Selecting Temperatures for Evaluatingand Reporting Thermal Properties of Thermal InsulationC 1104/C 1104M Test Method for Determining the WaterVapor Sorption of Unfaced Mineral Fiber
18、InsulationC 1114 Test Method for Steady-State Thermal TransmissionProperties by means of the Thin-Heater ApparatusC 1136 Specification for Flexible, Low Permeance VaporRetarders for Thermal InsulationC 1304 Test Method for Assessing the Odor Emission ofThermal Insulation MaterialsC 1335 Test Method
19、for Measuring the Non-Fibrous Con-tent of Man-Made Rock and Slag Mineral Fiber InsulationE 84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE 136 Test Method for Behavior of materials in a VerticalTube Furnace at 750C2.2 Other Document:CAN/ULC-S102M88 Standard Method of Test fo
20、r SurfaceBurning Characteristics of Building Materials and Assem-blies33. Terminology3.1 Terminology C 168 shall be the terms used in thisspecification.3.2 Definitions of Terms Specific to This Standard:3.2.1 mean temperaturethe sum of the cold surface tem-perature and the hot surface temperature di
21、vided by two.3.2.2 metal-mesh covered blanketmineral fiber thermalinsulation held together by metal-mesh facings on one or bothsides with heat-resistant metal ties attached through the blanketfrom one face to the other.3.2.3 metal-mesh covered blanket-type pipemineral fiberthermal insulation sized t
22、o fit around a large Nominal Pipe Size(NPS) and held together by metal-mesh facings on one or bothsides with heat-resistant metal ties attached through the blanketfrom one face to the other.4. Classification4.1 Mineral fiber metal-mesh covered blanket insulationcovered by this specification shall be
23、 classified into the threetypes shown in Table 1. The classification is based upon themaximum use temperature and apparent thermal conductivity.5. Ordering Information5.1 The type, dimensions, maximum use temperature, andfacings for one or both sides shall be specified by thepurchaser. A product cer
24、tification shall be specified in thepurchase order.3Available from Underwriters Laboratories of Canada, 7 Crouse Road, Scarbor-ough, Ontario, Canada M14 3A9.TABLE 1 Physical RequirementsProperties Type I Type II Type IIIMaximum use temperature F (C) 850 (454) 1200 (649) 1200 (649)(see 6.2.1) (Exclud
25、ing metal-meshfacings and metal tie wires/stitching)Apparent Thermal ConductivityA(Excluding metal-mesh facings andmetal tie wires/stitching)max Btu, in./h ft2F (W/m K)Mean Temperature,F (C)25 (4) 0.21 (0.030) 0.21 (0.030) 0.23 (0.033)75 (24) 0.25 (0.036) 0.25 (0.036) 0.24 (0.035)100 (38) 0.27 (0.03
26、9) 0.27 (0.039) 0.26 (0.038)200 (93) 0.34 (0.049) 0.34 (0.049) 0.31 (0.045)300 (149) 0.43 (0.062) 0.42 (0.060) 0.37 (0.053)400 (204) 0.55 (0.079) 0.53 (0.076) 0.44 (0.063)500 (260) 0.70 (0.101) 0.64 (0.092) 0.52 (0.075)600 (316) 0.75 (0.108) 0.60 (0.087)700 (371) 0.86 (0.124) 0.70 (0.101)Linear Shri
27、nkage, max % at maximumuse temperature4.0 4.0 4.0Water Vapor Sorption,Bmax %by weight5.0 5.0 1.25Surface Burning CharacteristicsMaximum-flame spread index 25 25 25Maximum smoke developed index 50 50 50Density maximum,Clb/ft3(kg/m3) 10 (160) 12 (192) 8 (128)AValues for apparent thermal conductivity a
28、re for insulation and do not include mesh and wire through insulation thickness. Therefore, Practice C 680 or other heat lossanalysis using these data are not possible without accounting for heat losses through attaching media.BSome water sorption characteristics will change after the product is sub
29、jected to elevated temperatures within normal service conditions.CThe maximum density specified is for the weight design purpose only and includes weight for the facings. Additional density requirements including the density for theblanket without facing(s) are permitted to be specified by agreement
30、 between the purchaser and the manufacturer or seller.C5920426. Materials and Manufacture6.1 CompositionMineral fiber metal-mesh covered blan-ket shall be composed of rock, slag, or glass processed from themolten state into fibrous form, bonded with or without anorganic binder, and secured with meta
31、llic supporting facing(s).Asbestos shall not be used as an ingredient or component partof the product.6.2 Facings:6.2.1 Types of facings for one or both sides of blanket unitsshall be specified. When both sides are to be faced, units arepermitted to have the same or different types on the two sides.
32、(WarningThe user of this specification is advised that themaximum use temperature of some facings and adhesives willbe lower than the maximum use temperature of the insulation.For example, usually galvanized hexagonal wire-woven net-ting and tie wires or stitching perform well under continuousexposu
33、re to temperatures up to 392F (200C). Exposure totemperatures above this limit will cause the outer free zinclayer to peel. Though there are potential or occasional concernsfor corrosion conditions at various temperatures, galvanizedwire, stitching, or facings are not recommended for tempera-tures a
34、bove 500F (260C). In addition, the user of thisspecification shall ensure that sufficient insulation thickness isinstalled so that none of the accessory items (facings, adhesive,coatings, and lagging) are exposed to temperatures above theirmaximum use temperature. Practice C 680 shall be used todete
35、rmine surface temperatures.)6.2.2 Standard Types of Metal Mesh Used as Facings:6.2.2.1 Woven netting, No. 20 to 22 gage (0.88 to 0.73 mm)diameter, galvanized wire mesh, 1 in. (25 mm) hexagonalshaped.6.2.2.2 Woven netting, nonferrous No. 20 to 22 gage (0.82to 0.64 mm) diameter, 300 series stainless s
36、teel wire mesh, 1in. (25 mm) hexagonal shaped.6.2.2.3 Stucco expanded metal lath, (painted finish, notflattened, not galvanized) having 1.5 in. (38 mm) diamond-shaped openings, No. 18 gage (1.2 mm) thickness, weighing1.8 lb/yd2(1010 g/m2).6.2.2.4 Expanded metal lath, (painted finish, not flattened,n
37、ot galvanized) having diamond-shaped openings, weighing2.5 lb/yd2(1400 g/m2).6.2.3 Other kinds or compositions of facings are permittedto be specified.6.3 Manufacture/Fabrication:6.3.1 Metallic facing(s) or wire mesh(s) shall be secured tothe insulation face on one or both side(s) with minimum(diame
38、ter) No. 28 gage (0.32 mm), 300 Series alloy, non-ferrous stainless steel tie wires or stitching no greater than 12in. (305 mm) apart passing vertically through the blanket.Spacing (attachment pattern) for vertical steel tie wires andstitching must include rows within 2 in. (51 mm) from alledges of
39、the blanket.6.3.2 Minimum (diameter) No. 28 gage (0.41 mm) galva-nized steel tie wires or stitching are permitted to be used forsecurement with galvanized steel facings.7. Physical Requirements7.1 Handling and TransportingEach piece of metal-meshcovered insulation shall be coherent to permit handlin
40、g /transportation and installation as a unit.7.2 The blanket insulation type shall conform to the follow-ing requirements in Table 1: maximum use temperature,density (for weight design purposes only), apparent thermalconductivity, water vapor sorption, and surface burning char-acteristics.7.3 Odor E
41、missionA detectable odor of objectionablenature recorded by more than two of the five panel membersshall constitute rejection of the material when tested inaccordance with 11.6.7.4 Corrosiveness to Steel, Copper, AluminumWhentested and evaluated in accordance with 11.7, the corrosionresulting from t
42、he unfaced insulation blanket in contact withmetal plates shall be judged to be no greater than comparativeplates in contact with sterile cotton.7.5 Non-Fibrous (Shot) ContentThe averaged maximumshot content of mineral fiber rock or slag type products shallnot exceed 30 % by weight as defined in 11.
43、3.7.6 Maximum Use TemperatureWhen tested in accor-dance with 11.1, the blanket insulation shall not warp, flame, orglow during hot surface exposure. No evidence of melting orfiber degradation shall be evident upon post test inspection.7.7 Maximum Exothermic TemperatureWhen tested inaccordance with 1
44、1.1, the blanket mid-point temperature shallnot at any time exceed the hot surface temperature by morethan 100F (55.5C). The 100F (55.5C) criterion appliesduring heat-up as well as steady state conditions. Exceedingthis limit constitutes noncompliance to specification.7.8 Non-CombustibilityWhen test
45、ed in accordance with11.10, shall not exceed the recorded temperature rise more than54F (30C) with no flaming and weight loss exceeding 5 %.8. Dimensions and Permissible Variations8.1 DimensionsStandard sizes of metal-mesh blanket in-sulation shall be as follows:Length = 48 in. (1219 mm) and 96 in.
46、(2438 mm) (except for Nominal PipeSizes (NPS) systemWidth = 24 in. (610 mm) and 36 in. (914 mm)Thickness = 1 to 6 in. (25 mm to 152 mm)Ain12 in. (13 mm) increments_AThickness over 2 in. (51 mm) may be composed of two or more blankets pliedtogether to establish total thickness before facings applied.
47、8.2 Dimensional TolerancesThe average measuredlength, width, and thickness shall differ from the manufactur-ers standard dimensions by not more than the following:Blanket Blanket-Type PipeLength = 612 in. (13 mm) 614 in. (6 mm)Width = 614 in. (6 mm) Not applicableThickness = 614 in. (6 mm),18 in. (3
48、 mm)+14 in. (6 mm),18 in. (3 mm)8.2.1 Pipe Diameters (Fit and Closure)When fittedaround the appropriate size pipe, by banding on 9-in. (229-mm)centers, the longitudinal seams on both sides of the pipeinsulation shall close along the entire length of the section orpiece.C5920439. Workmanship9.1 The i
49、nsulation blanket shall have good workmanshipand shall not have defects that adversely affect its installationand performance qualities.10. Sampling10.1 Inspection and qualification of the insulation shall be inaccordance with Criteria C 390 or as otherwise specified in thepurchase order or contract as agreed upon between the pur-chaser, supplier, or the manufacturer, or a combination thereof.11. Test Methods11.1 Maximum Use and Exothermic Temperature RiseThe insulation shall be tested in accordance with Test MethodC 411 and
