1、Designation: C592 13Standard Specification forMineral Fiber Blanket Insulation and Blanket-Type PipeInsulation (Metal-Mesh Covered) (Industrial Type)1This standard is issued under the fixed designation C592; 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 () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the composition, dimensions,and physical properties of
3、mineral fiber (rock, slag, or glass)metal mesh covered and industrial type blanket and blanket-type pipe insulation (typically on 24 in. (610 mm) diameters orlarger). Its use is for cooled surfaces at temperatures operatingbelow ambient to 0F (18C) and on heated surfaces onexpansion joints to large
4、diameter vessels and tanks operatingat temperatures up to 1200F (649C). Specific applicationsoutside the actual use temperatures shall be agreed uponbetween the manufacturer and purchaser.1.2 For satisfactory performance, properly installed protec-tive vapor retarders or barriers shall be used on be
5、low ambienttemperature applications to reduce movement of moisture/water vapor through or around the insulation towards thecolder surface. Failure to use a vapor retarder can lead toinsulation and system damage. Refer to Practice C921 to aidmaterial selection. Although vapor retarder properties are
6、notpart of this specification, properties required in SpecificationC1136 are pertinent to applications or performance.1.3 The orientation of the fibers within the blanket isprimarily parallel to the heated surface. This specification doesnot cover fabricated pipe and tank wrap insulation where thein
7、sulation 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 requirements of hourly-rated fire systems. Consult themanufacturer for the appropriate system.1.5 See Supplementary Requiremen
8、ts for modifications tosections in this standard only when specified by purchaser inthe contract or order from the U.S. Military specificationsutilized by the U.S. Department of Defense, Department of theNavy, and the Naval Systems Command.1.6 The values stated in inch-pound units are to be regarded
9、as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.7 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of
10、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 Standards:2C167 Test Methods for Thickness and Density of Blanket orBatt Thermal InsulationsC168 Terminology Relating to Therma
11、l InsulationC177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC356 Test Method for Linear Shrinkage of Preformed High-Temperature Thermal Insulation Subjected to SoakingHeatC390 Practice for Sampling and Acceptance
12、 of ThermalInsulation LotsC411 Test Method for Hot-Surface Performance of High-Temperature Thermal InsulationC447 Practice for Estimating the Maximum Use Tempera-ture of Thermal InsulationsC518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC665
13、Specification for Mineral-Fiber Blanket Thermal Insu-lation for Light Frame Construction and ManufacturedHousingC680 Practice for Estimate of the Heat Gain or Loss and theSurface Temperatures of Insulated Flat, Cylindrical, andSpherical Systems by Use of Computer ProgramsC795 Specification for Therm
14、al Insulation for Use in Con-tact with Austenitic Stainless SteelC921 Practice for Determining the Properties of JacketingMaterials for Thermal Insulation1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.23 o
15、nBlanket and Loose Fill Insulation.Current edition approved Nov. 1, 2013. Published December 2013. Originallyapproved in 1966. Last previous edition approved in 2012 as C592 12. DOI:10.1520/C0592-13.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service
16、 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 States1C1045 Practice for Calculating Thermal Transmiss
17、ion Prop-erties Under Steady-State ConditionsC1058 Practice for Selecting Temperatures for Evaluatingand Reporting Thermal Properties of Thermal InsulationC1104/C1104M Test Method for Determining the WaterVapor Sorption of Unfaced Mineral Fiber InsulationC1114 Test Method for Steady-State Thermal Tr
18、ansmissionProperties by Means of the Thin-Heater ApparatusC1136 Specification for Flexible, Low Permeance VaporRetarders for Thermal InsulationC1304 Test Method for Assessing the Odor Emission ofThermal Insulation MaterialsC1335 Test Method for Measuring Non-Fibrous Content ofMan-Made Rock and Slag
19、Mineral Fiber InsulationC1338 Test Method for Determining Fungi Resistance ofInsulation Materials and FacingsC1617 Practice for Quantitative Accelerated LaboratoryEvaluation of Extraction Solutions Containing IonsLeached from Thermal Insulation on Aqueous Corrosionof MetalsE84 Test Method for Surfac
20、e Burning Characteristics ofBuilding MaterialsE136 Test Method for Behavior of Materials in a VerticalTube Furnace at 750C2.2 Other Document:CAN/ULC-S102 Standard Method of Test for SurfaceBurning Characteristics of Building Materials andAssem-blies33. Terminology3.1 Terminology C168 shall be the te
21、rms 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 divided by two.3.2.2 metal-mesh covered blanketmineral fiber thermalinsulation held together by metal-mesh facings on one or
22、 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 to fit around a large Nominal Pipe Size(NPS) and held together by metal-mesh facings on one or bothsides with heat-resistan
23、t metal ties attached through the blanketfrom one face to the other.3Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas,WA 98607-8542, http:/.TABLE 1 Physical RequirementsProperties Type I Type II Type III Type IVAMaximum use temperature F (C) 850 (454) 1200 (649) 1200 (649) 12
24、00 (649)(see 6.2.1) (Excluding metal-meshall facings and metal tie- wires/stitching)Apparent Thermal ConductivityB(Excluding all 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) 0.23 (0.033)75 (24) 0.25 (0.036) 0.25 (
25、0.036) 0.24 (0.035) 0.24 (0.035)100 (38) 0.27 (0.039) 0.27 (0.039) 0.26 (0.038) 0.26 (0.038)200 (93) 0.34 (0.049) 0.34 (0.049) 0.31 (0.045) 0.31 (0.045)300 (149) 0.43 (0.062) 0.42 (0.060) 0.37 (0.053) 0.37 (0.053)400 (204) 0.55 (0.079) 0.53 (0.076) 0.44 (0.063) 0.44 (0.063)500 (260) 0.70 (0.101) 0.6
26、4 (0.092) 0.52 (0.075) 0.52 (0.075)600 (316) 0.75 (0.108) 0.60 (0.087) 0.60 (0.087)700 (371) 0.86 (0.124) 0.70 (0.101) 0.70 (0.101)Linear Shrinkage, max % at maximumuse temperature4.0 4.0 4.0 4.0Water Vapor Sorption,Cmax %by weight5.0 5.0 1.25 1.25Surface Burning CharacteristicsMaximum-flame spread
27、index 25 25 25 25Maximum smoke developed index 50 50 50 50Density maximum,Dlb/ft3(kg/m3) 10 (160) 12 (192) 8 (128) 8 (128)AType IV is for the Industrial Type, non-metal-mesh covered blankets only.BValues for apparent thermal conductivity are for insulation and do not include mesh and wire through in
28、sulation thickness. Therefore, Practice C680 or other heat lossanalysis using these data are not possible without accounting for heat losses through attaching media.CSome water sorption characteristics will change after the product is subjected to elevated temperatures within normal service conditio
29、ns.DThe 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 between the purchaser and the manufacturer or seller.C592 132
30、3.2.4 industrial type (faced and unfaced) blanketmineralfiber thermal insulation without a metal mesh covering.3.2.5 industrial type (faced and unfaced) blanket-typepipemineral fiber thermal insulation without a metal meshcovering and sized to fit around a large Nominal Pipe Sizes(NPS)4. Classificat
31、ion4.1 Mineral fiber blanket insulation covered by this speci-fication shall be classified into the four types shown in Table 1.TYPE I, II, and III are classified as metal-mesh coveredblankets and TYPE IV is classified as industrial type, non-metal-mesh covered (faced themetal-mesh covered blanket i
32、s secured with tie-wires or metalstitching. Asbestos shall not be used as an ingredient orcomponent part of 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
33、 on the two sides.6.2.1.1 The 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 unde
34、r continuousexposure 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 f
35、or tempera-tures above 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. As a general rule
36、, Practice C680shall be used to determine 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
37、mm) diameter, 300 series stainless steel 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 la
38、th, (painted finish, not flattened,not 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 Metal mesh facing(s) shall be secured to the insulationface on one or both side
39、(s) with minimum (diameter) No. 28gage (0.32 mm), 300 Series alloy, non-ferrous stainless steel tiewires or stitching no greater than 12 in. (305 mm) apart passingvertically through the blanket. Spacing (attachment pattern) forvertical steel tie wires and stitching must include rows within2 in. (51
40、mm) from all edges of the blanket.6.3.2 Minimum (diameter) No. 28 gage (0.41 mm) galva-nized steel tie wires or stitching is permitted to be used forsecurement with galvanized steel facings.6.4 Any non-metal mesh-facings for industrial type blanketand blanket-type pipe shall be adhered to the insula
41、tion face onone or both side(s).7. Physical Requirements7.1 Handling and TransportingEach piece of blanketinsulation shall be coherent to permit handling / transportationand installation as a unit.7.2 The blanket insulation type shall conform to the follow-ing requirements in Table 1: maximum use te
42、mperature,density (for weight design purposes only), apparent thermalconductivity, water vapor sorption, and surface burning char-acteristics.7.3 Odor EmissionA detectable odor of objectionablenature recorded by more than two of the five panel membersshall constitute rejection of the material when t
43、ested inaccordance with 11.6.7.4 Corrosiveness to Steel, Copper, AluminumWhentested and evaluated in accordance with Specification C665 in11.7, the corrosion resulting from the unfaced insulationblanket in contact with metal plates shall be judged to be nogreater than comparative plates in contact w
44、ith sterile cotton.7.4.1 The use of Practice C1617 is an acceptable alternativeto the test procedure in 7.3 for corrosiveness to steel with themass loss corrosion rate of the steel test sample exposed to theunfaced insulation extract not to exceed that of the 5 ppmchloride solution.7.5 Non-Fibrous (
45、Shot) ContentThe averaged maximumshot content of mineral fiber rock or slag type products shallnot exceed 25 % by weight as defined in 11.3.7.6 Maximum Use TemperatureWhen tested in accor-dance with 11.1, the blanket insulation shall not warp, flame, orglow during hot surface exposure. No evidence o
46、f melting orfiber degradation shall be evident upon post test inspection.7.7 Maximum Exothermic TemperatureWhen tested inaccordance with 11.1, the internal temperature shall not at anytime exceed the hot surface temperature by more than 100F(55.5C). The 100F (55.5C) criterion applies during heat-upC
47、592 133as well as steady state conditions. Exceeding this limit consti-tutes noncompliance to specification.7.8 Non-CombustibilityWhen the blanket insulation, withall facings removed, is tested in accordance with 11.10, therecorded temperature rise shall not exceed more than 54F(30C) with no flaming
48、 and weight loss exceeding 5 %.7.9 Stress Corrosion to Austenitic Stainless SteelWhenspecified, shall be tested and evaluated in accordance with11.11.7.10 Fungi ResistanceShall be tested in accordance with11.12; growth no greater than that on a comparative item(white birch wood) shall be considered
49、to have passed the testmethod criteria.8. Dimensions and Permissible Variations8.1 Dimensions:8.1.1 Standard sizes of metal-mesh blanket insulation andnon-metal-mesh industrial type blanket insulation shall be asfollows:Standard sizes of metal-mesh blanket insulationLength=48 in. (1219 mm) and 96 in.(2438 mm)(except for Nominal PipeSizes (NPS) systemWidth=24 in. (610 mm) and36 in. (914 mm)Thickness=1to6in.(25mmto152mm)Ain12 in. (13 mm)incrementsStandard sizes of non-metal-mesh industrial type blanket insulationLength=48 in. (1219 mm
