1、Designation: C547 15C547 17Standard Specification forMineral Fiber Pipe Insulation1This standard is issued under the fixed designation C547; 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 par
2、entheses 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 mineral fiber insulation produced to
3、 form hollow cylinders for standard pipe and tubing sizes.TheUse mineral fiber pipe insulation may be that has been either molded or precision v-grooved, with one or more walls splitlongitudinally for use on pipe temperatures up to 1400F (760C).1.2 For satisfactory performance, use properly installe
4、d protective vapor retarders or barriers should be used on sub-ambienttemperature applications to reduce movement of moisture through or around the insulation to the colder surface. Failure to use avapor barrier can lead to insulation and system damage. Refer to Practice C921 to aid material selecti
5、on.1.3 Flexible mineral fiber wrap products such as perpendicular-oriented fiber insulation rolls, non-precision or manually scoredblock or board, or flexible boards or blankets used as pipe insulation, are not covered by this specification.1.4 The values stated in inch-pound units are to be regarde
6、d as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.5 For Naval Sea Systems Command (NAVSEA) acceptance, materials must also comply with Supplemental Requirements.See Annex A1 of this standard
7、.1.6 The following safety hazards caveat applies to the test methods portion, Section 11, only:This standard does not purportto address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establishappropriate safety and health practic
8、es and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Reco
9、mmendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C167 Test Methods for Thickness and Density of Blanket or Batt Thermal InsulationsC168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State
10、Heat Flux Measurements and Thermal Transmission Properties by Means of theGuarded-Hot-Plate ApparatusC302 Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal InsulationC335/C335M Test Method for Steady-State Heat Transfer Properties of Pipe InsulationC356 Test Method for L
11、inear Shrinkage of Preformed High-Temperature Thermal Insulation Subjected to Soaking HeatC390 Practice for Sampling and Acceptance of Thermal Insulation LotsC411 Test Method for Hot-Surface Performance of High-Temperature Thermal InsulationC447 Practice for Estimating the Maximum Use Temperature of
12、 Thermal InsulationsC585 Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and TubingC680 Practice for Estimate of the Heat Gain or Loss and the Surface Temperatures of Insulated Flat, Cylindrical, and SphericalSystems by Use of Computer Programs1 This specificat
13、ion is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.20 on HomogeneousInorganic Thermal Insulations.Current edition approved March 1, 2015Sept. 1, 2017. Published April 2015September 2017. Originally approved in 1964. Last pre
14、vious edition approved in 20122015as C547 15. DOI: 10.1520/C0547-12.10.1520/C0547-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary p
15、age on the ASTM website.This document is not an ASTM standard and 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
16、 users consult prior editions as appropriate. In all cases only 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 States1C795 Specification for T
17、hermal Insulation for Use in Contact with Austenitic Stainless SteelC921 Practice for Determining the Properties of Jacketing Materials for Thermal InsulationC1045 Practice for Calculating Thermal Transmission Properties Under Steady-State ConditionsC1058/C1058M Practice for Selecting Temperatures f
18、or Evaluating and Reporting Thermal Properties of Thermal InsulationC1104/C1104M Test Method for Determining the Water Vapor Sorption of Unfaced Mineral Fiber InsulationC1335 Test Method for Measuring Non-Fibrous Content of Man-Made Rock and Slag Mineral Fiber InsulationE84 Test Method for Surface B
19、urning Characteristics of Building Materials2.2 Other Standards:UL 723 Tests for Surface Burning of Building Materials3NFPA 255 Method of Tests of Surface Burning Characteristics of Building Materials4CAN/ULC-S102 Standard Method of Test for Surface Burning Characteristics of Building Materials and
20、Assemblies 43. Terminology3.1 The definitions in Terminology C168 shall apply to the terms used in this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 moldedrefers to products preformed via a molding process to yield full-round cylindrical pipe insulation sections.3.2.2 preci
21、sion v-grooverefers to products fabricated from machined board via a precision cutting process. Machinedsegments are adhered to a backing to form a full-round cylindrical pipe insulation section. Due to the precision of the process, theproduct has no gaps when installed.4. Classification4.1 Products
22、 covered by this specification are classified according to maximum use temperature as follows:4.1.1 Type IMolded, for use to 850F (454C).Grade ARequires no heat-up scheduleGrade BHeat-up schedule is required4.1.2 Type IIMolded, for use to 1200F (650C).Grade ARequires no heat-up scheduleGrade BHeat-u
23、p schedule is required4.1.3 Type IIIPrecision v-groove, for use to 1200F (650C).Grade ARequires no heat-up scheduleGrade BHeat-up schedule is required4.1.4 Type IVMolded, for use to 1000F (538C).Grade ARequires no heat-up scheduleGrade BHeat-up schedule is required4.1.5 Type VMolded, for use to 1400
24、F (760C)Grade ARequires no heat-up scheduleGrade BHeat-up schedule is requiredNOTE 1Warning: Grade B may not be suitable for applications requiring hot installation capability at the maximum temperature indicated. Productshaving a Grade B designation are designed to be used with a heat-up schedule.
25、Failure to use a heat-up schedule with Grade B products may lead to anexothermic reaction. This is dependent on thickness and temperature. Consult the manufacturer or manufacturers literature for special heat rateconsiderations.4.2 Binder It is possible that binder decomposition at elevated temperat
26、ure maywill be a limiting factor in certain applications.Consult the manufacturer regarding special heat rate considerations.5. Materials and Manufacturer5.1 CompositionThe mineral fiber insulation for pipes shall be manufactured from mineral substance such as rock, slag, orglass, processed from a m
27、olten state into fibrous form with binder. Asbestos shall not be used as an ingredient or component part.Some products mayIt is possible that some products will also contain adhesive.5.2 Jackets (Facings)The user of this specification has the option to specify that the insulation be jacketed.NOTE 2T
28、he user is advised that the maximum use temperature of factory-applied facings and adhesives may be lower than the maximum usetemperature of the insulation. The specifier shall ensure that sufficient insulation thickness is installed so none of these accessory items (facings andadhesives) are expose
29、d to temperatures above their maximum use temperature. The products covered by this standard are predominantly inorganic innature. Organic facings, adhesives and binders are also used in the construction of these products. The resulting composite therefore could have increasedcombustibility.3 Availa
30、ble from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas, WA 98607-8542, http:/.4 Available from National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02169-7471, http:/www.nfpa.org.4 Available from Underwriters Laboratories of Canada, 7 Crouse Road, Scarborough, Ont
31、ario MIR3A9.C547 1726. Physical Requirements6.1 The product shall conform to the following requirements in addition to those specified in Table 1.6.2 Hot Surface Performance:6.2.1 The product shall not crack, warp, flame, or glow during hot surface exposure. No evidence of melting or fiber degradati
32、onshall be evident upon post test inspection.6.2.2 For Grade A products the insulations internal temperature rise (exotherm) shall not exceed the pipe temperature by morethan 200F (111C).6.3 Non-fibrous (Shot) Content:6.3.1 The non-fibrous content of a rock- or slag-based product shall not exceed 25
33、 % by weight.6.4 For Naval Sea Systems Command (NAVSEA) acceptance, materials must also comply with Supplemental Requirements.See Annex A1 of this standard.7. Standard Shapes, Sizes, and Dimensions7.1 The basic shape of mineral fiber pipe insulation forms a right annular cylinder, which is radially
34、slit on at least one side ofthe cylinder axis. It is furnished in sections or segments designed to fit standard sizes of pipe and tubing.7.2 Typical available thicknesses range from nominal 12-in. (13 mm) to nominal 6-in. (152 mm), single or double layer, in 12-in.increments for most pipe and tubing
35、 sizes.7.3 Individual dimensions for inner diameter and wall thickness shall conform to Practice C585.7.4 Standard section or segment length shall be 3 ft (0.91m) or as agreed upon between the buyer and seller.8. Dimensional Tolerances8.1 Length equals 618-in. (3 mm).8.2 When installed on a nominal
36、pipe or tubing size as defined in Practice C585, the insulation shall fit snugly and have tightlongitudinal and circumferential joints.8.3 The inner and outer bore of the insulation shall be concentric to the outer surface. The deviation from concentricity shallnot exceed 316 in. (5 mm).9. Workmansh
37、ip9.1 The insulation shall not have defects that will adversely affect installation or service quality.TABLE 1 Requirements of Mineral Fiber Pipe Insulation (Grades A molded; physical properties; pipe insulation; precision v-groove; thermal propertiesANNEX(Mandatory Information)A1. MINERAL FIBER PIP
38、E INSULATION COMPRESSION RESILIENCY FOR NAVSEAA1.1 ScopeA1.1.1 In addition to the requirements of this standard, additional compression resiliency testing is required for Naval Sea SystemCommand (NAVSEA) acceptance.A1.2 BackgroundA1.2.1 NAVSEA engineers, builds and supports Americas Fleet of ships a
39、nd combat systems. This test is only required ifNAVSEA acceptance is desired.A1.3 Test OverviewA1.3.1 Three 12-in. segments of half-round 3 by 2 in. (80 by 50 mm) thick mineral fiber pipe insulation are measured for initialthickness, then compressed 10 times to a maximum load of 200 lbs.,200 lb, the
40、n re-measured for thickness recovery aftercompression.C547 175A1.4 ApparatusA1.4.1 Universal testing machine,A1.4.2 Pin gauge as specified in Test Methods C167,A1.4.3 Steel rule graduated in 132 in. (1 mm),A1.4.4 A 12 in. (305 mm) length of schedule 40, 3-in. (80 mm) nominal pipe size (NPS),A1.4.5 A
41、 12 in. (305 mm) length of channel or I-beam for supporting the 3-in. pipe,A1.4.6 A sample of 3-in. x 2-in. (80 mm by 50 mm) thick mineral fiber pipe insulation, andA1.4.7 A 12-in. (305 mm) saddle conforming to the outside diameter of the insulation.A1.5 Sample PreparationA1.5.1 Three 12-in. (305 mm
42、) long, half-round segments of 32-in. (80 mm by 50 mm) mineral fiber pipe insulation are cut froma full-round section.A1.6 Thickness DeterminationA1.6.1 A half-round 12-in. (305 mm) length of 3 2-in. (80 by 50 mm) pipe insulation is placed on a 3-in. (80 mm) NPS pipeand measured for thickness using
43、the pin gauge and steel rule. The measurements are in the center of the insulation length and 3-in.(75 mm) from each end. These values are recorded as the initial thickness. The measurement points are marked as there-measurement points after compression. See Fig. A1.1.A1.7 Compression SaddleA1.7.1 T
44、he sheet metal comprising the radius of the saddle shall be 132 in. (13 gauge) (2 mm) or greater. See Fig. A1.2.FIG. A1.1 Thickness DeterminationC547 176A1.7.2 An alternative to metal is to use a half round of 8-in. nominal (280 mm) Schedule 80 PVC piping which has an averageinside diameter of 7.565
45、 in. (192 mm).A1.7.3 The wooden portion shall be mechanically fastened to the radial portion with wood screws.A1.8 Compression Resiliency TestA1.8.1 The half round insulation segment is placed in the half-round compression saddle designed to test pipe insulation (See Fig.A1.3). The saddle may be pla
46、ced Either place the saddle on top of the half round segment, or let the segment may rest in the saddle(upside down from the figures provided). If the saddle is placed on top, and is not fixed to the crosshead of the testing machine,then its mass shall be taken into account as part of the pounds for
47、ce applied to the half round section. If the saddle is on the bottom,then the 3 in. (80 mm) NPS pipe shall be fixed to the cross-head of the universal testing machine. Hence there would be noapparatus mass to be accounted for.A1.8.2 Using the universal testing machine, the half-round section shall b
48、e loaded to a force of 200 lbs.lb (90 kg) and released.This is repeated a total of ten times. The test speed shall be 0.5 in. (12 mm) per minute.A1.8.3 The compressed sample is re-measured for thickness after 15 min rest after the last compression and recorded. (See Fig.A1.1),A1.8.4 Three 12-in. (30
49、5 mm) long, half-sections shall be tested.FIG. A1.2 Compression Saddle ConfigurationC547 177A1.9 CalculationA1.9.1 The percent of thickness recovery after enduring ten loading of a force equal to 200 lbs.lb per lineal foot (90 kg per 0.305m) is calculated as follows for the three tests:%Comp.Resiliency5SAverage Recovered ThicknessAverage Initial Thickness D x 100 (A1.1)A1.10 RequirementA1.10.1 The average of three tests shall have a thickness recovery after compression of greater than or equal to 90 percent.%.A1.11 P
