1、Designation: C592 12Standard 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 PreformedHigh-Temperature Thermal Insulation Subjected to Soak-ing HeatC390 Practice for Sampling and Acceptanc
12、e 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 In-sulation 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 Ther
14、mal Insulation for Use in Con-tact with Austenitic Stainless SteelC921 Practice for Determining the Properties of JacketingMaterials for Thermal InsulationC1045 Practice for CalculatingThermalTransmission Prop-erties Under Steady-State ConditionsC1058 Practice for Selecting Temperatures for Evaluati
15、ng1This 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 edition approved May 1, 2012. Published June 2012. Originallyapproved in 1966. Last previous edition approved
16、 in 2010 as C592 10. DOI:10.1520/C0592-12.2For 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 Document Summary page onthe ASTM website.1Copyright ASTM Int
17、ernational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.and 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 Transmi
18、ssionProperties 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 Miner
19、al Fiber InsulationC1338 Test Method for Determining Fungi Resistance ofInsulation Materials and FacingsE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE136 Test Method for Behavior of Materials in a VerticalTube Furnace at 750C2.2 Other Document:CAN/ULC-S102 Standard Method
20、of Test for SurfaceBurning Characteristics of Building Materials andAssem-blies33. Terminology3.1 Terminology C168 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 temper
21、ature divided 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
22、 sized to 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.3.2.4 industrial type (faced and unfaced) blanketmineralfiber thermal insulation without a metal mesh
23、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. Classification4.1 Mineral fiber blanket insulation covered by this speci-fication shall be classified into the fo
24、ur 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 is secured with tie-wires or metalstitching. Asbestos shall not be used as an ingredient orcomponent pa
25、rt 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 on the two sides.6.2.1.1 The user of this specification is advised that themaximum use temperature of
26、 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 continuousexposure to temperatures up to 392F (200C). Exposure totemperatures above this limit will
27、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 above 500F (260C). In addition, the user of thisspecification shall ensure that suffi
28、cient 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, Practice C680shall be used to determine surface temperatures.)6.2.2 Standard Types of Metal Mesh Use
29、d 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 steel wire mesh, 1in. (25 mm) hexagonal shaped.6.2.2.3 Stucco expan
30、ded 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,not galvanized) having diamond-shaped openings, weighing2.5 lb/yd2(
31、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(s) with minimum (diameter) No. 28gage (0.32 mm), 300 Series alloy, non-ferrous stainless steel tiewir
32、es 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 mm) from all edges of the blanket.6.3.2 Minimum (diameter) No. 28 gage (0.41 mm) galva-nized steel tie
33、 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 insulation face onone or both side(s).7. Physical Requirements7.1 Handling and TransportingEach piece of bla
34、nketinsulation 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 temperature,density (for weight design purposes only), apparent thermalconductivity, water vapor sorptio
35、n, 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 tested inaccordance with 11.6.7.4 Corrosiveness to Steel, Copper, AluminumWhentested and evaluated in a
36、ccordance with 11.7, the corrosionresulting from the 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 product
37、s 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 of melting orfiber degradation shall be evident upon post test inspection.7.7 Maximum Exo
38、thermic 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-upas well as steady state conditions. Exceeding this limit consti-tutes noncompliance to sp
39、ecification.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 and weight loss exceeding 5 %.7.9 Stress Corrosion to Austenitic Stainless SteelWhenspecified,
40、shall be tested and evaluated in accordance with11.11.7.10 Fungi Resistance Shall be tested in accordance with11.12; growth no greater than that on a comparative item(white birch wood) shall be considered to have passed the testmethod criteria.8. Dimensions and Permissible Variations8.1 Dimensions:8
41、.1.1 Standard sizes of metal-mesh blanket insulation andnon-metal-mesh industrial type blanket insulation shall be asfollows:C592 123Standard 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. (91
42、4 mm)Thickness=1to6in.(25mmto152mm)Ain12 in. (13 mm)incrementsStandard sizes of non-metal-mesh industrial type blanket insulationLength=48 in. (1219 mm), 96 in. (2438 mm) and upto 25 ft. (7.62 m)(except for Nominal Pipe Sizes (NPS) system)Width=24 in. (610 mm), 36 in. (914 mm),and 48 in. (1219 mm)Th
43、ickness=1to6in.(25mmto152mm)Bin12 in. (13 mm) incrementsAIt is acceptable for thickness over 2 in. (51 mm) to be composed of two or moreblankets plied together to establish total thickness before facings applied.BConsult manufacturer for maximum available thickness.8.2 Dimensional TolerancesThe aver
44、age measuredlength, width, and thickness shall differ from the standarddimensions from the manufacturer by not more than thefollowing:Blanket Blanket-TypePipeBlanket-TypeRollLength=612 in. (13mm)614 in. (6mm)-0 in., excesspermittedWidth=614 in. (6mm)Not applicable 612 in. (12.7mm)Thickness=614 in. (
45、6mm),18 in. (3 mm)+14 in. (6mm),18 in. (3 mm)-18 in. (3mm),(excess permit-ted)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
46、section orpiece.9. Workmanship9.1 The insulation 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 Practice C390 or as otherwise spec
47、ified 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 blanket without any facings shall be tested inaccordance with Test Method C411 and the
48、hot surfaceperformance section of Practice C447 at the maximum usetemperature of the insulation and at the maximum recom-mended thickness stipulated by the manufacturer for thattemperature. The test surface shall be at the intended surfacetemperature when test begins. No special requirements for hea
49、tup shall be specified by the manufacturer.11.2 Density:11.2.1 The thickness and density of insulation shall betested in accordance with Test Methods C167.11.2.2 The maximum density of a rock, slag or glass type ofblanket insulation shall not exceed that shown in Table 1.When density is part of the purchase contract, the deliveredproduct density shall be calculated on the basis of singlepackage units excluding the container and facing weights andwith a tolerance of not more than 10 % on the individualcontainer contents.11.3 Non-Fibrous
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